38204540 has 36 divisors (see below), whose sum is σ = 88191768. Its totient is φ = 13891680.

The previous prime is 38204533. The next prime is 38204549. The reversal of 38204540 is 4540283.

It is a super-2 number, since 2×38204540² = 2919173753223200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38204549) 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, 5474 + ... + 10313.

Almost surely, 2^38204540 is an apocalyptic number.

It is an amenable number.

38204540 is an abundant number, since it is smaller than the sum of its proper divisors (49987228).

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

38204540 is a wasteful number, since it uses less digits than its factorization.

38204540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15818 (or 15805 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 38204540 is about 6180.9821226080. The cubic root of 38204540 is about 336.7996707869.

The spelling of 38204540 in words is "thirty-eight million, two hundred four thousand, five hundred forty".