438465020 has 72 divisors (see below), whose sum is σ = 1117961376. Its totient is φ = 141474816.

The previous prime is 438465019. The next prime is 438465061. The reversal of 438465020 is 20564834.

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, 35042 + ... + 45878.

Almost surely, 2^438465020 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 438465020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558980688).

438465020 is an abundant number, since it is smaller than the sum of its proper divisors (679496356).

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

438465020 is a wasteful number, since it uses less digits than its factorization.

438465020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10887 (or 10868 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 438465020 is about 20939.5563467806. The cubic root of 438465020 is about 759.7049986189.

The spelling of 438465020 in words is "four hundred thirty-eight million, four hundred sixty-five thousand, twenty".