1142356480 has 80 divisors (see below), whose sum is σ = 2900205000. Its totient is φ = 430047232.

The previous prime is 1142356477. The next prime is 1142356493. The reversal of 1142356480 is 846532411.

It can be written as a sum of positive squares in 4 ways, for example, as 1108623616 + 33732864 = 33296^2 + 5808^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30396 + ... + 56644.

Almost surely, 2^1142356480 is an apocalyptic number.

1142356480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142356480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1450102500).

1142356480 is an abundant number, since it is smaller than the sum of its proper divisors (1757848520).

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

1142356480 is an equidigital number, since it uses as much as digits as its factorization.

1142356480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26289 (or 26273 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1142356480 is about 33798.7644744597. The cubic root of 1142356480 is about 1045.3632216453.

Adding to 1142356480 its reverse (846532411), we get a palindrome (1988888891).

The spelling of 1142356480 in words is "one billion, one hundred forty-two million, three hundred fifty-six thousand, four hundred eighty".