1365980994 has 48 divisors (see below), whose sum is σ = 3529498752. Its totient is φ = 373310784.

The previous prime is 1365980977. The next prime is 1365981053. The reversal of 1365980994 is 4990895631.

It is a self number, because there is not a number n which added to its sum of digits gives 1365980994.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232779 + ... + 238574.

It is an arithmetic number, because the mean of its divisors is an integer number (73531224).

Almost surely, 2^1365980994 is an apocalyptic number.

1365980994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1365980994 is an abundant number, since it is smaller than the sum of its proper divisors (2163517758).

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

1365980994 is a wasteful number, since it uses less digits than its factorization.

1365980994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471391 (or 471388 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The square root of 1365980994 is about 36959.1801045424. The cubic root of 1365980994 is about 1109.5534263977.

The spelling of 1365980994 in words is "one billion, three hundred sixty-five million, nine hundred eighty thousand, nine hundred ninety-four".