38112540 has 36 divisors (see below), whose sum is σ = 106849176. Its totient is φ = 10150592.

The previous prime is 38112469. The next prime is 38112601. The reversal of 38112540 is 4521183.

It is a self number, because there is not a number n which added to its sum of digits gives 38112540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47422 + ... + 48218.

Almost surely, 2^38112540 is an apocalyptic number.

38112540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38112540 is an abundant number, since it is smaller than the sum of its proper divisors (68736636).

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

38112540 is an equidigital number, since it uses as much as digits as its factorization.

38112540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 38112540 is about 6173.5354538546. The cubic root of 38112540 is about 336.5291054295.

Multiplying 38112540 by its product of nonzero digits (960), we get a square (36588038400 = 191280²).

It can be divided in two parts, 381 and 12540, that added together give a palindrome (12921).

The spelling of 38112540 in words is "thirty-eight million, one hundred twelve thousand, five hundred forty".