38640048 has 40 divisors (see below), whose sum is σ = 105694128. Its totient is φ = 12122112.

The previous prime is 38640037. The next prime is 38640059. The reversal of 38640048 is 84004683.

It is an interprime number because it is at equal distance from previous prime (38640037) and next prime (38640059).

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, 22861 + ... + 24492.

Almost surely, 2^38640048 is an apocalyptic number.

It is an amenable number.

38640048 is an abundant number, since it is smaller than the sum of its proper divisors (67054080).

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

38640048 is a wasteful number, since it uses less digits than its factorization.

38640048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47381 (or 47375 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 38640048 is about 6216.1119681035. Note that the first 3 decimals coincide. The cubic root of 38640048 is about 338.0746074349.

The spelling of 38640048 in words is "thirty-eight million, six hundred forty thousand, forty-eight".