1142621430 has 64 divisors (see below), whose sum is σ = 2894400000. Its totient is φ = 287884800.

The previous prime is 1142621423. The next prime is 1142621437. The reversal of 1142621430 is 341262411.

It is an interprime number because it is at equal distance from previous prime (1142621423) and next prime (1142621437).

It is a self number, because there is not a number n which added to its sum of digits gives 1142621430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142621437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226071 + ... + 231069.

It is an arithmetic number, because the mean of its divisors is an integer number (45225000).

Almost surely, 2^1142621430 is an apocalyptic number.

1142621430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142621430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447200000).

1142621430 is an abundant number, since it is smaller than the sum of its proper divisors (1751778570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142621430 is a wasteful number, since it uses less digits than its factorization.

1142621430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5429.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1142621430 is about 33802.6837691921. The cubic root of 1142621430 is about 1045.4440334235. Note that the first 3 decimals are identical.

Adding to 1142621430 its reverse (341262411), we get a palindrome (1483883841).

The spelling of 1142621430 in words is "one billion, one hundred forty-two million, six hundred twenty-one thousand, four hundred thirty".