1252680980 has 12 divisors (see below), whose sum is σ = 2630630100. Its totient is φ = 501072384.

The previous prime is 1252680973. The next prime is 1252681007. The reversal of 1252680980 is 890862521.

It can be written as a sum of positive squares in 2 ways, for example, as 326452624 + 926228356 = 18068^2 + 30434^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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 in 3 ways as a sum of consecutive naturals, for example, 31317005 + ... + 31317044.

It is an arithmetic number, because the mean of its divisors is an integer number (219219175).

Almost surely, 2^1252680980 is an apocalyptic number.

1252680980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252680980 is an abundant number, since it is smaller than the sum of its proper divisors (1377949120).

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

1252680980 is a wasteful number, since it uses less digits than its factorization.

1252680980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62634058 (or 62634056 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 1252680980 is about 35393.2335341093. The cubic root of 1252680980 is about 1077.9869279236.

The spelling of 1252680980 in words is "one billion, two hundred fifty-two million, six hundred eighty thousand, nine hundred eighty".