904782438 has 96 divisors (see below), whose sum is σ = 2281581120. Its totient is φ = 253808640.

The previous prime is 904782433. The next prime is 904782469. The reversal of 904782438 is 834287409.

It is a super-2 number, since 2×904782438² = 1637262520226447688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 904782393 and 904782402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904782433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2211978 + ... + 2212386.

It is an arithmetic number, because the mean of its divisors is an integer number (23766470).

Almost surely, 2^904782438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 904782438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1140790560).

904782438 is an abundant number, since it is smaller than the sum of its proper divisors (1376798682).

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

904782438 is a wasteful number, since it uses less digits than its factorization.

904782438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 904782438 is about 30079.6016928416. The cubic root of 904782438 is about 967.1965099817.

The spelling of 904782438 in words is "nine hundred four million, seven hundred eighty-two thousand, four hundred thirty-eight".