904388916 has 96 divisors (see below), whose sum is σ = 2335592448. Its totient is φ = 271111680.

The previous prime is 904388887. The next prime is 904388917. The reversal of 904388916 is 619883409.

It is a super-2 number, since 2×904388916² = 1635838622767310112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904388917) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 524031 + ... + 525753.

It is an arithmetic number, because the mean of its divisors is an integer number (24329088).

Almost surely, 2^904388916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 904388916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1167796224).

904388916 is an abundant number, since it is smaller than the sum of its proper divisors (1431203532).

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

904388916 is a wasteful number, since it uses less digits than its factorization.

904388916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861 (or 1859 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 904388916 is about 30073.0596381545. The cubic root of 904388916 is about 967.0562669490.

The spelling of 904388916 in words is "nine hundred four million, three hundred eighty-eight thousand, nine hundred sixteen".