38493240 has 64 divisors (see below), whose sum is σ = 121564800. Its totient is φ = 9724032.

The previous prime is 38493239. The next prime is 38493277. The reversal of 38493240 is 4239483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6162 + ... + 10721.

It is an arithmetic number, because the mean of its divisors is an integer number (1899450).

Almost surely, 2^38493240 is an apocalyptic number.

38493240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38493240 is an abundant number, since it is smaller than the sum of its proper divisors (83071560).

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

38493240 is a wasteful number, since it uses less digits than its factorization.

38493240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16916 (or 16912 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 38493240 is about 6204.2920627578. The cubic root of 38493240 is about 337.6459067347.

The spelling of 38493240 in words is "thirty-eight million, four hundred ninety-three thousand, two hundred forty".