1365920 has 24 divisors (see below), whose sum is σ = 3227364. Its totient is φ = 546304.

The previous prime is 1365919. The next prime is 1365977. The reversal of 1365920 is 295631.

It can be written as a sum of positive squares in 2 ways, for example, as 1336336 + 29584 = 1156^2 + 172^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1365920.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4109 + ... + 4428.

2^1365920 is an apocalyptic number.

1365920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1365920 is an abundant number, since it is smaller than the sum of its proper divisors (1861444).

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

1365920 is an equidigital number, since it uses as much as digits as its factorization.

1365920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8552 (or 8544 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 1365920 is about 1168.7258018885. The cubic root of 1365920 is about 110.9536911500.

The spelling of 1365920 in words is "one million, three hundred sixty-five thousand, nine hundred twenty".