1572180972 has 24 divisors (see below), whose sum is σ = 3669076992. Its totient is φ = 523966800.

The previous prime is 1572180971. The next prime is 1572180977. The reversal of 1572180972 is 2790812751.

It is a super-4 number, since 4×1572180972⁴ (a number of 38 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1572180971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104697 + ... + 118767.

It is an arithmetic number, because the mean of its divisors is an integer number (152878208).

Almost surely, 2^1572180972 is an apocalyptic number.

1572180972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1572180972 is an abundant number, since it is smaller than the sum of its proper divisors (2096896020).

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

1572180972 is a wasteful number, since it uses less digits than its factorization.

1572180972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23389 (or 23387 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 42.

The square root of 1572180972 is about 39650.7373449725. The cubic root of 1572180972 is about 1162.7888140770.

The spelling of 1572180972 in words is "one billion, five hundred seventy-two million, one hundred eighty thousand, nine hundred seventy-two".