438624465 has 16 divisors (see below), whose sum is σ = 713305536. Its totient is φ = 230097600.

The previous prime is 438624451. The next prime is 438624491. The reversal of 438624465 is 564426834.

It is not a de Polignac number, because 438624465 - 2¹¹ = 438622417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238771 + ... + 240600.

It is an arithmetic number, because the mean of its divisors is an integer number (44581596).

Almost surely, 2^438624465 is an apocalyptic number.

It is an amenable number.

438624465 is a deficient number, since it is larger than the sum of its proper divisors (274681071).

438624465 is a wasteful number, since it uses less digits than its factorization.

438624465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479440.

The product of its digits is 552960, while the sum is 42.

The square root of 438624465 is about 20943.3632685870. The cubic root of 438624465 is about 759.7970747467.

The spelling of 438624465 in words is "four hundred thirty-eight million, six hundred twenty-four thousand, four hundred sixty-five".