439085790 has 192 divisors, whose sum is σ = 1357836480. Its totient is φ = 97044480.

The previous prime is 439085753. The next prime is 439085813. The reversal of 439085790 is 97580934.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1402674 + ... + 1402986.

It is an arithmetic number, because the mean of its divisors is an integer number (7072065).

Almost surely, 2^439085790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 439085790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678918240).

439085790 is an abundant number, since it is smaller than the sum of its proper divisors (918750690).

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

439085790 is a wasteful number, since it uses less digits than its factorization.

439085790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 439085790 is about 20954.3740063978. The cubic root of 439085790 is about 760.0633545985.

The spelling of 439085790 in words is "four hundred thirty-nine million, eighty-five thousand, seven hundred ninety".