1572439672 has 32 divisors (see below), whose sum is σ = 2970938880. Its totient is φ = 780209280.

The previous prime is 1572439657. The next prime is 1572439679. The reversal of 1572439672 is 2769342751.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572439679) 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, 944713 + ... + 946375.

It is an arithmetic number, because the mean of its divisors is an integer number (92841840).

Almost surely, 2^1572439672 is an apocalyptic number.

It is an amenable number.

1572439672 is a deficient number, since it is larger than the sum of its proper divisors (1398499208).

1572439672 is a wasteful number, since it uses less digits than its factorization.

1572439672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503 (or 2499 counting only the distinct ones).

The product of its digits is 635040, while the sum is 46.

The square root of 1572439672 is about 39653.9994452010. Note that the first 3 decimals coincide. The cubic root of 1572439672 is about 1162.8525889590.

The spelling of 1572439672 in words is "one billion, five hundred seventy-two million, four hundred thirty-nine thousand, six hundred seventy-two".