1572872974 has 4 divisors (see below), whose sum is σ = 2359309464. Its totient is φ = 786436486.

The previous prime is 1572872941. The next prime is 1572872981. The reversal of 1572872974 is 4792782751.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393218242 + ... + 393218245.

It is an arithmetic number, because the mean of its divisors is an integer number (589827366).

Almost surely, 2^1572872974 is an apocalyptic number.

1572872974 is a deficient number, since it is larger than the sum of its proper divisors (786436490).

1572872974 is an equidigital number, since it uses as much as digits as its factorization.

1572872974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786436489.

The product of its digits is 1975680, while the sum is 52.

The square root of 1572872974 is about 39659.4626035200. The cubic root of 1572872974 is about 1162.9593911651.

The spelling of 1572872974 in words is "one billion, five hundred seventy-two million, eight hundred seventy-two thousand, nine hundred seventy-four".