100256442 has 32 divisors (see below), whose sum is σ = 235569600. Its totient is φ = 28043520.

The previous prime is 100256417. The next prime is 100256501. The reversal of 100256442 is 244652001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57567 + ... + 59282.

It is an arithmetic number, because the mean of its divisors is an integer number (7361550).

Almost surely, 2^100256442 is an apocalyptic number.

100256442 is an abundant number, since it is smaller than the sum of its proper divisors (135313158).

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

100256442 is a wasteful number, since it uses less digits than its factorization.

100256442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116878.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 100256442 is about 10012.8138902109. The cubic root of 100256442 is about 464.5553107932. Note that the first 3 decimals are identical.

The spelling of 100256442 in words is "one hundred million, two hundred fifty-six thousand, four hundred forty-two".