38641530 has 16 divisors (see below), whose sum is σ = 92739744. Its totient is φ = 10304400.

The previous prime is 38641523. The next prime is 38641549. The reversal of 38641530 is 3514683.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1288051 = 38641530 / (3 + 8 + 6 + 4 + 1 + 5 + 3 + 0).

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, 643996 + ... + 644055.

It is an arithmetic number, because the mean of its divisors is an integer number (5796234).

Almost surely, 2^38641530 is an apocalyptic number.

38641530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38641530 is an abundant number, since it is smaller than the sum of its proper divisors (54098214).

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

38641530 is a wasteful number, since it uses less digits than its factorization.

38641530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288061.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 38641530 is about 6216.2311733075. The cubic root of 38641530 is about 338.0789295497.

The spelling of 38641530 in words is "thirty-eight million, six hundred forty-one thousand, five hundred thirty".