38675640 has 64 divisors (see below), whose sum is σ = 122140800. Its totient is φ = 9770112.

The previous prime is 38675639. The next prime is 38675671. The reversal of 38675640 is 4657683.

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 15 ways as a sum of consecutive naturals, for example, 6202 + ... + 10761.

It is an arithmetic number, because the mean of its divisors is an integer number (1908450).

Almost surely, 2^38675640 is an apocalyptic number.

38675640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38675640 is an abundant number, since it is smaller than the sum of its proper divisors (83465160).

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

38675640 is a wasteful number, since it uses less digits than its factorization.

38675640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16996 (or 16992 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 38675640 is about 6218.9741919387. The cubic root of 38675640 is about 338.1783776545.

The spelling of 38675640 in words is "thirty-eight million, six hundred seventy-five thousand, six hundred forty".