38231830 has 32 divisors (see below), whose sum is σ = 84700224. Its totient is φ = 12099456.

The previous prime is 38231801. The next prime is 38231863. The reversal of 38231830 is 3813283.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20097 + ... + 21916.

It is an arithmetic number, because the mean of its divisors is an integer number (2646882).

Almost surely, 2^38231830 is an apocalyptic number.

38231830 is an abundant number, since it is smaller than the sum of its proper divisors (46468394).

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

38231830 is a wasteful number, since it uses less digits than its factorization.

38231830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42040.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 38231830 is about 6183.1893064987. The cubic root of 38231830 is about 336.8798451624.

The spelling of 38231830 in words is "thirty-eight million, two hundred thirty-one thousand, eight hundred thirty".