1572772980 has 48 divisors (see below), whose sum is σ = 4417124544. Its totient is φ = 418133760.

The previous prime is 1572772963. The next prime is 1572772987. The reversal of 1572772980 is 892772751.

It is a happy number.

It is a super-2 number, since 2×1572772980² = 4947229693236160800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) 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 (1572772987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19737 + ... + 59456.

It is an arithmetic number, because the mean of its divisors is an integer number (92023428).

Almost surely, 2^1572772980 is an apocalyptic number.

1572772980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1572772980 is an abundant number, since it is smaller than the sum of its proper divisors (2844351564).

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

1572772980 is a wasteful number, since it uses less digits than its factorization.

1572772980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79536 (or 79534 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 48.

The square root of 1572772980 is about 39658.2019259573. The cubic root of 1572772980 is about 1162.9347459400.

The spelling of 1572772980 in words is "one billion, five hundred seventy-two million, seven hundred seventy-two thousand, nine hundred eighty".