19738972 has 36 divisors (see below), whose sum is σ = 40219200. Its totient is φ = 8440960.

The previous prime is 19738963. The next prime is 19738987. The reversal of 19738972 is 27983791.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7029 + ... + 9427.

It is an arithmetic number, because the mean of its divisors is an integer number (1117200).

Almost surely, 2^19738972 is an apocalyptic number.

It is an amenable number.

19738972 is an abundant number, since it is smaller than the sum of its proper divisors (20480228).

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

19738972 is a wasteful number, since it uses less digits than its factorization.

19738972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442 (or 2429 counting only the distinct ones).

The product of its digits is 190512, while the sum is 46.

The square root of 19738972 is about 4442.8562884703. The cubic root of 19738972 is about 270.2556882868.

The spelling of 19738972 in words is "nineteen million, seven hundred thirty-eight thousand, nine hundred seventy-two".