38899040 has 24 divisors (see below), whose sum is σ = 91899360. Its totient is φ = 15559552.

The previous prime is 38899031. The next prime is 38899067. The reversal of 38899040 is 4099883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121400 + ... + 121719.

It is an arithmetic number, because the mean of its divisors is an integer number (3829140).

Almost surely, 2^38899040 is an apocalyptic number.

It is an amenable number.

38899040 is an abundant number, since it is smaller than the sum of its proper divisors (53000320).

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

38899040 is a wasteful number, since it uses less digits than its factorization.

38899040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243134 (or 243126 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 38899040 is about 6236.9094910861. The cubic root of 38899040 is about 338.8282617614.

The spelling of 38899040 in words is "thirty-eight million, eight hundred ninety-nine thousand, forty".