439445088 has 144 divisors (see below), whose sum is σ = 1338494976. Its totient is φ = 141678720.

The previous prime is 439445063. The next prime is 439445099. The reversal of 439445088 is 880544934.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×439445088² = 386223970734655488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240145 + ... + 241967.

It is an arithmetic number, because the mean of its divisors is an integer number (9295104).

Almost surely, 2^439445088 is an apocalyptic number.

439445088 is a gapful number since it is divisible by the number (48) 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 439445088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669247488).

439445088 is an abundant number, since it is smaller than the sum of its proper divisors (899049888).

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

439445088 is a wasteful number, since it uses less digits than its factorization.

439445088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879 (or 1859 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 439445088 is about 20962.9455945485. The cubic root of 439445088 is about 760.2706146183.

The spelling of 439445088 in words is "four hundred thirty-nine million, four hundred forty-five thousand, eighty-eight".