1364556420 has 72 divisors (see below), whose sum is σ = 4319130816. Its totient is φ = 348059712.

The previous prime is 1364556379. The next prime is 1364556439. The reversal of 1364556420 is 246554631.

1364556420 is a `hidden beast` number, since 1 + 3 + 6 + 4 + 5 + 5 + 642 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 160662 + ... + 168941.

It is an arithmetic number, because the mean of its divisors is an integer number (59987928).

Almost surely, 2^1364556420 is an apocalyptic number.

1364556420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1364556420 is an abundant number, since it is smaller than the sum of its proper divisors (2954574396).

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

1364556420 is a wasteful number, since it uses less digits than its factorization.

1364556420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329641 (or 329636 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 1364556420 is about 36939.9028152484. The cubic root of 1364556420 is about 1109.1675765289.

The spelling of 1364556420 in words is "one billion, three hundred sixty-four million, five hundred fifty-six thousand, four hundred twenty".