38745231 has 12 divisors (see below), whose sum is σ = 60094872. Its totient is φ = 22140048.

The previous prime is 38745211. The next prime is 38745299. The reversal of 38745231 is 13254783.

It is not a de Polignac number, because 38745231 - 2⁶ = 38745167 is a prime.

It is a super-2 number, since 2×38745231² = 3002385850486722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38745192 and 38745201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38745211) 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, 131640 + ... + 131933.

It is an arithmetic number, because the mean of its divisors is an integer number (5007906).

Almost surely, 2^38745231 is an apocalyptic number.

38745231 is a deficient number, since it is larger than the sum of its proper divisors (21349641).

38745231 is a wasteful number, since it uses less digits than its factorization.

38745231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263590 (or 263583 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 38745231 is about 6224.5667319099. The cubic root of 38745231 is about 338.3810898369.

The spelling of 38745231 in words is "thirty-eight million, seven hundred forty-five thousand, two hundred thirty-one".