38118440 has 32 divisors (see below), whose sum is σ = 86348160. Its totient is φ = 15144000.

The previous prime is 38118439. The next prime is 38118461. The reversal of 38118440 is 4481183.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

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, 2885 + ... + 9195.

It is an arithmetic number, because the mean of its divisors is an integer number (2698380).

Almost surely, 2^38118440 is an apocalyptic number.

It is an amenable number.

38118440 is an abundant number, since it is smaller than the sum of its proper divisors (48229720).

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

38118440 is a wasteful number, since it uses less digits than its factorization.

38118440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6473 (or 6469 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 38118440 is about 6174.0132814888. The cubic root of 38118440 is about 336.5464699616.

The spelling of 38118440 in words is "thirty-eight million, one hundred eighteen thousand, four hundred forty".