1520303972 has 24 divisors (see below), whose sum is σ = 2943283392. Its totient is φ = 681312800.

The previous prime is 1520303969. The next prime is 1520303977. The reversal of 1520303972 is 2793030251.

It is a super-2 number, since 2×1520303972² = 4622648334557953568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1520303977) 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, 240203 + ... + 246450.

It is an arithmetic number, because the mean of its divisors is an integer number (122636808).

Almost surely, 2^1520303972 is an apocalyptic number.

It is an amenable number.

1520303972 is a deficient number, since it is larger than the sum of its proper divisors (1422979420).

1520303972 is a wasteful number, since it uses less digits than its factorization.

1520303972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486739 (or 486737 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 1520303972 is about 38991.0755430009. The cubic root of 1520303972 is about 1149.8560555813.

The spelling of 1520303972 in words is "one billion, five hundred twenty million, three hundred three thousand, nine hundred seventy-two".