438467492 has 24 divisors (see below), whose sum is σ = 811660416. Its totient is φ = 206826048.

The previous prime is 438467479. The next prime is 438467507. The reversal of 438467492 is 294764834.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25928 + ... + 39359.

It is an arithmetic number, because the mean of its divisors is an integer number (33819184).

Almost surely, 2^438467492 is an apocalyptic number.

It is an amenable number.

438467492 is a deficient number, since it is larger than the sum of its proper divisors (373192924).

438467492 is a wasteful number, since it uses less digits than its factorization.

438467492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65387 (or 65385 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 47.

The square root of 438467492 is about 20939.6153737360. The cubic root of 438467492 is about 759.7064263171.

The spelling of 438467492 in words is "four hundred thirty-eight million, four hundred sixty-seven thousand, four hundred ninety-two".