38999424 has 32 divisors (see below), whose sum is σ = 103593240. Its totient is φ = 12999680.

The previous prime is 38999407. The next prime is 38999453. The reversal of 38999424 is 42499983.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 50397 + ... + 51164.

Almost surely, 2^38999424 is an apocalyptic number.

It is an amenable number.

38999424 is an abundant number, since it is smaller than the sum of its proper divisors (64593816).

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

38999424 is a wasteful number, since it uses less digits than its factorization.

38999424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101578 (or 101566 counting only the distinct ones).

The product of its digits is 559872, while the sum is 48.

The square root of 38999424 is about 6244.9518813198. The cubic root of 38999424 is about 339.1194747737.

The spelling of 38999424 in words is "thirty-eight million, nine hundred ninety-nine thousand, four hundred twenty-four".