1252086780 has 48 divisors (see below), whose sum is σ = 4006679040. Its totient is φ = 286191168.

The previous prime is 1252086769. The next prime is 1252086791. The reversal of 1252086780 is 876802521.

1252086780 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1252086769) and next prime (1252086791).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1490160 + ... + 1490999.

It is an arithmetic number, because the mean of its divisors is an integer number (83472480).

Almost surely, 2^1252086780 is an apocalyptic number.

1252086780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252086780 is an abundant number, since it is smaller than the sum of its proper divisors (2754592260).

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

1252086780 is a wasteful number, since it uses less digits than its factorization.

1252086780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981178 (or 2981176 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 1252086780 is about 35384.8382785622. The cubic root of 1252086780 is about 1077.8164559125.

The spelling of 1252086780 in words is "one billion, two hundred fifty-two million, eighty-six thousand, seven hundred eighty".