438450620 has 12 divisors (see below), whose sum is σ = 920746344. Its totient is φ = 175380240.

The previous prime is 438450611. The next prime is 438450637. The reversal of 438450620 is 26054834.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10961246 + ... + 10961285.

It is an arithmetic number, because the mean of its divisors is an integer number (76728862).

Almost surely, 2^438450620 is an apocalyptic number.

It is an amenable number.

438450620 is an abundant number, since it is smaller than the sum of its proper divisors (482295724).

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

438450620 is a wasteful number, since it uses less digits than its factorization.

438450620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21922540 (or 21922538 counting only the distinct ones).

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

The square root of 438450620 is about 20939.2124971308. The cubic root of 438450620 is about 759.6966818234.

The spelling of 438450620 in words is "four hundred thirty-eight million, four hundred fifty thousand, six hundred twenty".