1252754680 has 16 divisors (see below), whose sum is σ = 2818698120. Its totient is φ = 501101856.

The previous prime is 1252754663. The next prime is 1252754707. The reversal of 1252754680 is 864572521.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 31318867 = 1252754680 / (1 + 2 + 5 + 2 + 7 + 5 + 4 + 6 + 8 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15659394 + ... + 15659473.

Almost surely, 2^1252754680 is an apocalyptic number.

1252754680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252754680 is an abundant number, since it is smaller than the sum of its proper divisors (1565943440).

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

1252754680 is a wasteful number, since it uses less digits than its factorization.

1252754680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31318878 (or 31318874 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 1252754680 is about 35394.2746782583. The cubic root of 1252754680 is about 1078.0080682032.

The spelling of 1252754680 in words is "one billion, two hundred fifty-two million, seven hundred fifty-four thousand, six hundred eighty".