438340746 has 8 divisors (see below), whose sum is σ = 876681504. Its totient is φ = 146113580.

The previous prime is 438340729. The next prime is 438340751. The reversal of 438340746 is 647043834.

It is a sphenic number, since it is the product of 3 distinct primes.

438340746 is an admirable 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, 36528390 + ... + 36528401.

It is an arithmetic number, because the mean of its divisors is an integer number (109585188).

Almost surely, 2^438340746 is an apocalyptic number.

438340746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

438340746 is a wasteful number, since it uses less digits than its factorization.

438340746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73056796.

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 438340746 is about 20936.5886906153. The cubic root of 438340746 is about 759.6332175221.

The spelling of 438340746 in words is "four hundred thirty-eight million, three hundred forty thousand, seven hundred forty-six".