439396920 has 128 divisors (see below), whose sum is σ = 1469664000. Its totient is φ = 116772480.

The previous prime is 439396901. The next prime is 439396927. The reversal of 439396920 is 29693934.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439396927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 452035 + ... + 453005.

It is an arithmetic number, because the mean of its divisors is an integer number (11481750).

Almost surely, 2^439396920 is an apocalyptic number.

439396920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 439396920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734832000).

439396920 is an abundant number, since it is smaller than the sum of its proper divisors (1030267080).

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

439396920 is a wasteful number, since it uses less digits than its factorization.

439396920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410 (or 1400 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 439396920 is about 20961.7966787201. The cubic root of 439396920 is about 760.2428356048.

The spelling of 439396920 in words is "four hundred thirty-nine million, three hundred ninety-six thousand, nine hundred twenty".