1522347972 has 24 divisors (see below), whose sum is σ = 3612352800. Its totient is φ = 498848256.

The previous prime is 1522347971. The next prime is 1522347997. The reversal of 1522347972 is 2797432251.

It is not an unprimeable number, because it can be changed into a prime (1522347971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1074397 + ... + 1075812.

It is an arithmetic number, because the mean of its divisors is an integer number (150514700).

Almost surely, 2^1522347972 is an apocalyptic number.

1522347972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1522347972 is an abundant number, since it is smaller than the sum of its proper divisors (2090004828).

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

1522347972 is a wasteful number, since it uses less digits than its factorization.

1522347972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150275 (or 2150273 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 1522347972 is about 39017.2778650690. The cubic root of 1522347972 is about 1150.3711396924.

The spelling of 1522347972 in words is "one billion, five hundred twenty-two million, three hundred forty-seven thousand, nine hundred seventy-two".