904023120 has 640 divisors, whose sum is σ = 3887751168. Its totient is φ = 167731200.

The previous prime is 904023089. The next prime is 904023121. The reversal of 904023120 is 21320409.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904023121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12732685 + ... + 12732755.

Almost surely, 2^904023120 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 904023120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1943875584).

904023120 is an abundant number, since it is smaller than the sum of its proper divisors (2983728048).

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

904023120 is a wasteful number, since it uses less digits than its factorization.

904023120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 904023120 is about 30066.9772341684. The cubic root of 904023120 is about 966.9258683961.

Adding to 904023120 its reverse (21320409), we get a palindrome (925343529).

The spelling of 904023120 in words is "nine hundred four million, twenty-three thousand, one hundred twenty".