38411640 has 48 divisors (see below), whose sum is σ = 124839000. Its totient is φ = 10243008.

The previous prime is 38411627. The next prime is 38411641. The reversal of 38411640 is 4611483.

38411640 is a `hidden beast` number, since 3 + 8 + 4 + 11 + 640 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38411641) 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, 52990 + ... + 53709.

Almost surely, 2^38411640 is an apocalyptic number.

38411640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38411640 is an abundant number, since it is smaller than the sum of its proper divisors (86427360).

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

38411640 is a wasteful number, since it uses less digits than its factorization.

38411640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106716 (or 106709 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 38411640 is about 6197.7124812305. The cubic root of 38411640 is about 337.4071514138.

The spelling of 38411640 in words is "thirty-eight million, four hundred eleven thousand, six hundred forty".