1366463720 has 32 divisors (see below), whose sum is σ = 3088350720. Its totient is φ = 544130880.

The previous prime is 1366463677. The next prime is 1366463737. The reversal of 1366463720 is 273646631.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 67676 + ... + 85515.

It is an arithmetic number, because the mean of its divisors is an integer number (96510960).

Almost surely, 2^1366463720 is an apocalyptic number.

1366463720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1366463720 is an abundant number, since it is smaller than the sum of its proper divisors (1721887000).

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

1366463720 is a wasteful number, since it uses less digits than its factorization.

1366463720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153425 (or 153421 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 1366463720 is about 36965.7100567539. The cubic root of 1366463720 is about 1109.6841132347.

The spelling of 1366463720 in words is "one billion, three hundred sixty-six million, four hundred sixty-three thousand, seven hundred twenty".