100404042 has 16 divisors (see below), whose sum is σ = 202651680. Its totient is φ = 33160752.

The previous prime is 100404019. The next prime is 100404049. The reversal of 100404042 is 240404001.

It is not an unprimeable number, because it can be changed into a prime (100404049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76108 + ... + 77415.

It is an arithmetic number, because the mean of its divisors is an integer number (12665730).

Almost surely, 2^100404042 is an apocalyptic number.

100404042 is an abundant number, since it is smaller than the sum of its proper divisors (102247638).

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

100404042 is a wasteful number, since it uses less digits than its factorization.

100404042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153637.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 100404042 is about 10020.1817348789. The cubic root of 100404042 is about 464.7831755923.

Adding to 100404042 its reverse (240404001), we get a palindrome (340808043).

The spelling of 100404042 in words is "one hundred million, four hundred four thousand, forty-two".