437664834 has 12 divisors (see below), whose sum is σ = 948273846. Its totient is φ = 145888272.

The previous prime is 437664833. The next prime is 437664863. The reversal of 437664834 is 438466734.

It can be written as a sum of positive squares in only one way, i.e., 403407225 + 34257609 = 20085^2 + 5853^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 437664834.

It is not an unprimeable number, because it can be changed into a prime (437664833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12157339 + ... + 12157374.

Almost surely, 2^437664834 is an apocalyptic number.

437664834 is an abundant number, since it is smaller than the sum of its proper divisors (510609012).

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

437664834 is a wasteful number, since it uses less digits than its factorization.

437664834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24314721 (or 24314718 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The square root of 437664834 is about 20920.4405785347. The cubic root of 437664834 is about 759.2425706373.

The spelling of 437664834 in words is "four hundred thirty-seven million, six hundred sixty-four thousand, eight hundred thirty-four".