1364871920 has 40 divisors (see below), whose sum is σ = 3211575696. Its totient is φ = 539368448.

The previous prime is 1364871917. The next prime is 1364871923. The reversal of 1364871920 is 291784631.

It is an interprime number because it is at equal distance from previous prime (1364871917) and next prime (1364871923).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1364871923) 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, 96137 + ... + 109416.

Almost surely, 2^1364871920 is an apocalyptic number.

1364871920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1364871920 is an abundant number, since it is smaller than the sum of its proper divisors (1846703776).

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

1364871920 is a wasteful number, since it uses less digits than its factorization.

1364871920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205649 (or 205643 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 1364871920 is about 36944.1730182176. The cubic root of 1364871920 is about 1109.2530537332.

The spelling of 1364871920 in words is "one billion, three hundred sixty-four million, eight hundred seventy-one thousand, nine hundred twenty".