38899998 has 24 divisors (see below), whose sum is σ = 85714200. Its totient is φ = 12746544.

The previous prime is 38899981. The next prime is 38900003. The reversal of 38899998 is 89999883.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17253 + ... + 19376.

It is an arithmetic number, because the mean of its divisors is an integer number (3571425).

Almost surely, 2^38899998 is an apocalyptic number.

38899998 is an abundant number, since it is smaller than the sum of its proper divisors (46814202).

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

38899998 is a wasteful number, since it uses less digits than its factorization.

38899998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36696 (or 36693 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 63.

The square root of 38899998 is about 6236.9862914712. The cubic root of 38899998 is about 338.8310432766.

The spelling of 38899998 in words is "thirty-eight million, eight hundred ninety-nine thousand, nine hundred ninety-eight".