1572720472 has 16 divisors (see below), whose sum is σ = 2949699600. Its totient is φ = 786133920.

The previous prime is 1572720467. The next prime is 1572720521. The reversal of 1572720472 is 2740272751.

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, 3322 + ... + 56182.

It is an arithmetic number, because the mean of its divisors is an integer number (184356225).

Almost surely, 2^1572720472 is an apocalyptic number.

It is an amenable number.

1572720472 is a deficient number, since it is larger than the sum of its proper divisors (1376979128).

1572720472 is a wasteful number, since it uses less digits than its factorization.

1572720472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56586 (or 56582 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 37.

The square root of 1572720472 is about 39657.5399136154. The cubic root of 1572720472 is about 1162.9218040304.

The spelling of 1572720472 in words is "one billion, five hundred seventy-two million, seven hundred twenty thousand, four hundred seventy-two".