1366640922 has 16 divisors (see below), whose sum is σ = 2733801120. Its totient is φ = 455460432.

The previous prime is 1366640909. The next prime is 1366640927. The reversal of 1366640922 is 2290466631.

It is not an unprimeable number, because it can be changed into a prime (1366640927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18229 + ... + 55367.

It is an arithmetic number, because the mean of its divisors is an integer number (170862570).

Almost surely, 2^1366640922 is an apocalyptic number.

1366640922 is an abundant number, since it is smaller than the sum of its proper divisors (1367160198).

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

1366640922 is a wasteful number, since it uses less digits than its factorization.

1366640922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43277.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 1366640922 is about 36968.1068219621. The cubic root of 1366640922 is about 1109.7320788318.

The spelling of 1366640922 in words is "one billion, three hundred sixty-six million, six hundred forty thousand, nine hundred twenty-two".