1366409676 has 12 divisors (see below), whose sum is σ = 3188289272. Its totient is φ = 455469888.

The previous prime is 1366409657. The next prime is 1366409689. The reversal of 1366409676 is 6769046631.

It is a tau number, because it is divible by the number of its divisors (12).

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, 56933725 + ... + 56933748.

Almost surely, 2^1366409676 is an apocalyptic number.

It is an amenable number.

1366409676 is an abundant number, since it is smaller than the sum of its proper divisors (1821879596).

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

1366409676 is a wasteful number, since it uses less digits than its factorization.

1366409676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113867480 (or 113867478 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 48.

The square root of 1366409676 is about 36964.9790477419. The cubic root of 1366409676 is about 1109.6694836088.

The spelling of 1366409676 in words is "one billion, three hundred sixty-six million, four hundred nine thousand, six hundred seventy-six".