1366999252 has 24 divisors (see below), whose sum is σ = 2428392960. Its totient is φ = 673214880.

The previous prime is 1366999247. The next prime is 1366999301. The reversal of 1366999252 is 2529996631.

It is a self number, because there is not a number n which added to its sum of digits gives 1366999252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131178 + ... + 141214.

It is an arithmetic number, because the mean of its divisors is an integer number (101183040).

Almost surely, 2^1366999252 is an apocalyptic number.

It is an amenable number.

1366999252 is a deficient number, since it is larger than the sum of its proper divisors (1061393708).

1366999252 is a wasteful number, since it uses less digits than its factorization.

1366999252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10551 (or 10549 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 52.

The square root of 1366999252 is about 36972.9529791711. The cubic root of 1366999252 is about 1109.8290600603.

The spelling of 1366999252 in words is "one billion, three hundred sixty-six million, nine hundred ninety-nine thousand, two hundred fifty-two".