1571973972 has 24 divisors (see below), whose sum is σ = 3668774592. Its totient is φ = 523872000.

The previous prime is 1571973941. The next prime is 1571973973. The reversal of 1571973972 is 2793791751.

It is a super-2 number, since 2×1571973972² = 4942204337290913568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1571973973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51972 + ... + 76452.

It is an arithmetic number, because the mean of its divisors is an integer number (152865608).

Almost surely, 2^1571973972 is an apocalyptic number.

1571973972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1571973972 is an abundant number, since it is smaller than the sum of its proper divisors (2096800620).

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

1571973972 is a wasteful number, since it uses less digits than its factorization.

1571973972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29839 (or 29837 counting only the distinct ones).

The product of its digits is 833490, while the sum is 51.

The square root of 1571973972 is about 39648.1269671091. The cubic root of 1571973972 is about 1162.7377792717.

The spelling of 1571973972 in words is "one billion, five hundred seventy-one million, nine hundred seventy-three thousand, nine hundred seventy-two".