1973855472 has 20 divisors (see below), whose sum is σ = 5099126760. Its totient is φ = 657951808.

The previous prime is 1973855459. The next prime is 1973855491. The reversal of 1973855472 is 2745583791.

It is a super-2 number, since 2×1973855472² = 7792210848688685568, which contains 22 as substring.

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, 20560947 + ... + 20561042.

It is an arithmetic number, because the mean of its divisors is an integer number (254956338).

Almost surely, 2^1973855472 is an apocalyptic number.

1973855472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1973855472 is an abundant number, since it is smaller than the sum of its proper divisors (3125271288).

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

1973855472 is a wasteful number, since it uses less digits than its factorization.

1973855472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41122000 (or 41121994 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 1973855472 is about 44428.0932744137. The cubic root of 1973855472 is about 1254.4069454996.

The spelling of 1973855472 in words is "one billion, nine hundred seventy-three million, eight hundred fifty-five thousand, four hundred seventy-two".