904042738 has 32 divisors (see below), whose sum is σ = 1435196160. Its totient is φ = 426254400.

The previous prime is 904042729. The next prime is 904042747. The reversal of 904042738 is 837240409.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (904042729) and next prime (904042747).

It is a junction number, because it is equal to n+sod(n) for n = 904042697 and 904042706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1090108 + ... + 1090936.

It is an arithmetic number, because the mean of its divisors is an integer number (44849880).

Almost surely, 2^904042738 is an apocalyptic number.

904042738 is a deficient number, since it is larger than the sum of its proper divisors (531153422).

904042738 is a wasteful number, since it uses less digits than its factorization.

904042738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 904042738 is about 30067.3034707138. The cubic root of 904042738 is about 966.9328626916.

The spelling of 904042738 in words is "nine hundred four million, forty-two thousand, seven hundred thirty-eight".