438340702464 has 144 divisors (see below), whose sum is σ = 1481429389440. Its totient is φ = 125240186880.

The previous prime is 438340702403. The next prime is 438340702469. The reversal of 438340702464 is 464207043834.

438340702464 is a `hidden beast` number, since 4 + 3 + 83 + 40 + 70 + 2 + 464 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (438340702469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4481427 + ... + 4578194.

Almost surely, 2^438340702464 is an apocalyptic number.

It is an amenable number.

438340702464 is an abundant number, since it is smaller than the sum of its proper divisors (1043088686976).

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

438340702464 is an equidigital number, since it uses as much as digits as its factorization.

438340702464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9059653 (or 9059633 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 45.

The spelling of 438340702464 in words is "four hundred thirty-eight billion, three hundred forty million, seven hundred two thousand, four hundred sixty-four".