38567640 has 32 divisors (see below), whose sum is σ = 115703280. Its totient is φ = 10284672.

The previous prime is 38567609. The next prime is 38567681. The reversal of 38567640 is 4676583.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160579 + ... + 160818.

Almost surely, 2^38567640 is an apocalyptic number.

38567640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38567640 is an abundant number, since it is smaller than the sum of its proper divisors (77135640).

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

38567640 is a wasteful number, since it uses less digits than its factorization.

38567640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321411 (or 321407 counting only the distinct ones).

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

The square root of 38567640 is about 6210.2850176139. The cubic root of 38567640 is about 337.8633015139.

The spelling of 38567640 in words is "thirty-eight million, five hundred sixty-seven thousand, six hundred forty".