1972838812 has 24 divisors (see below), whose sum is σ = 3947769056. Its totient is φ = 845054208.

The previous prime is 1972838801. The next prime is 1972838827. The reversal of 1972838812 is 2188382791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38128 + ... + 73480.

Almost surely, 2^1972838812 is an apocalyptic number.

It is an amenable number.

1972838812 is an abundant number, since it is smaller than the sum of its proper divisors (1974930244).

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

1972838812 is a wasteful number, since it uses less digits than its factorization.

1972838812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37357 (or 37355 counting only the distinct ones).

The product of its digits is 387072, while the sum is 49.

The square root of 1972838812 is about 44416.6501663509. The cubic root of 1972838812 is about 1254.1915422951.

The spelling of 1972838812 in words is "one billion, nine hundred seventy-two million, eight hundred thirty-eight thousand, eight hundred twelve".