1142304100 has 72 divisors (see below), whose sum is σ = 2867191488. Its totient is φ = 386908800.

The previous prime is 1142304083. The next prime is 1142304101. The reversal of 1142304100 is 14032411.

It is not an unprimeable number, because it can be changed into a prime (1142304101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48270 + ... + 67930.

It is an arithmetic number, because the mean of its divisors is an integer number (39822104).

Almost surely, 2^1142304100 is an apocalyptic number.

1142304100 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 1142304100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433595744).

1142304100 is an abundant number, since it is smaller than the sum of its proper divisors (1724887388).

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

1142304100 is a wasteful number, since it uses less digits than its factorization.

1142304100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19765 (or 19758 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1142304100 is about 33797.9895851810. The cubic root of 1142304100 is about 1045.3472438650.

Adding to 1142304100 its reverse (14032411), we get a palindrome (1156336511).

The spelling of 1142304100 in words is "one billion, one hundred forty-two million, three hundred four thousand, one hundred".