1572140880 has 80 divisors (see below), whose sum is σ = 5415159360. Its totient is φ = 419236992.

The previous prime is 1572140831. The next prime is 1572140881. The reversal of 1572140880 is 880412751.

1572140880 is a `hidden beast` number, since 1 + 572 + 1 + 4 + 0 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572140881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361762 + ... + 366081.

It is an arithmetic number, because the mean of its divisors is an integer number (67689492).

Almost surely, 2^1572140880 is an apocalyptic number.

1572140880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1572140880 is an abundant number, since it is smaller than the sum of its proper divisors (3843018480).

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

1572140880 is a wasteful number, since it uses less digits than its factorization.

1572140880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727865 (or 727853 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 1572140880 is about 39650.2317773806. The cubic root of 1572140880 is about 1162.7789299465.

The spelling of 1572140880 in words is "one billion, five hundred seventy-two million, one hundred forty thousand, eight hundred eighty".