20038972 has 12 divisors (see below), whose sum is σ = 35159320. Its totient is φ = 9993456.

The previous prime is 20038961. The next prime is 20038979. The reversal of 20038972 is 27983002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20038979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4722 + ... + 7897.

Almost surely, 2^20038972 is an apocalyptic number.

It is an amenable number.

20038972 is a deficient number, since it is larger than the sum of its proper divisors (15120348).

20038972 is a wasteful number, since it uses less digits than its factorization.

20038972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13020 (or 13018 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 20038972 is about 4476.4910365151. The cubic root of 20038972 is about 271.6179577360.

The spelling of 20038972 in words is "twenty million, thirty-eight thousand, nine hundred seventy-two".