38634456 has 64 divisors (see below), whose sum is σ = 112492800. Its totient is φ = 10827648.

The previous prime is 38634451. The next prime is 38634499. The reversal of 38634456 is 65443683.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38634451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6735 + ... + 11073.

It is an arithmetic number, because the mean of its divisors is an integer number (1757700).

Almost surely, 2^38634456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38634456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56246400).

38634456 is an abundant number, since it is smaller than the sum of its proper divisors (73858344).

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

38634456 is a wasteful number, since it uses less digits than its factorization.

38634456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4408 (or 4404 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 38634456 is about 6215.6621529810. The cubic root of 38634456 is about 338.0582978933.

The spelling of 38634456 in words is "thirty-eight million, six hundred thirty-four thousand, four hundred fifty-six".