438466734 has 24 divisors (see below), whose sum is σ = 950401920. Its totient is φ = 146095488.

The previous prime is 438466729. The next prime is 438466739. The reversal of 438466734 is 437664834.

It is an interprime number because it is at equal distance from previous prime (438466729) and next prime (438466739).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 438466734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438466739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71934 + ... + 77790.

It is an arithmetic number, because the mean of its divisors is an integer number (39600080).

Almost surely, 2^438466734 is an apocalyptic number.

438466734 is an abundant number, since it is smaller than the sum of its proper divisors (511935186).

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

438466734 is a wasteful number, since it uses less digits than its factorization.

438466734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10024 (or 10021 counting only the distinct ones).

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

The square root of 438466734 is about 20939.5972740643. The cubic root of 438466734 is about 759.7059885365.

The spelling of 438466734 in words is "four hundred thirty-eight million, four hundred sixty-six thousand, seven hundred thirty-four".