38231901 has 12 divisors (see below), whose sum is σ = 55352700. Its totient is φ = 25428480.

The previous prime is 38231899. The next prime is 38231909. The reversal of 38231901 is 10913283.

It can be written as a sum of positive squares in 2 ways, for example, as 26163225 + 12068676 = 5115^2 + 3474^2 .

It is not a de Polignac number, because 38231901 - 2¹ = 38231899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38231909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 690 + ... + 8771.

It is an arithmetic number, because the mean of its divisors is an integer number (4612725).

Almost surely, 2^38231901 is an apocalyptic number.

It is an amenable number.

38231901 is a deficient number, since it is larger than the sum of its proper divisors (17120799).

38231901 is a wasteful number, since it uses less digits than its factorization.

38231901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9916 (or 9913 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 38231901 is about 6183.1950478697. The cubic root of 38231901 is about 336.8800537011.

The spelling of 38231901 in words is "thirty-eight million, two hundred thirty-one thousand, nine hundred one".