38438456 has 32 divisors (see below), whose sum is σ = 85212000. Its totient is φ = 15904896.

The previous prime is 38438453. The next prime is 38438461. The reversal of 38438456 is 65483483.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38438453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10211 + ... + 13458.

It is an arithmetic number, because the mean of its divisors is an integer number (2662875).

Almost surely, 2^38438456 is an apocalyptic number.

It is an amenable number.

38438456 is an abundant number, since it is smaller than the sum of its proper divisors (46773544).

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

38438456 is a wasteful number, since it uses less digits than its factorization.

38438456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23711 (or 23707 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 38438456 is about 6199.8754826206. The cubic root of 38438456 is about 337.4856502358.

The spelling of 38438456 in words is "thirty-eight million, four hundred thirty-eight thousand, four hundred fifty-six".