1357320 has 32 divisors (see below), whose sum is σ = 4072320. Its totient is φ = 361920.

The previous prime is 1357201. The next prime is 1357333. The reversal of 1357320 is 237531.

It is a happy number.

It is a Smith number, since the sum of its digits (21) 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, 5536 + ... + 5775.

It is an arithmetic number, because the mean of its divisors is an integer number (127260).

2^1357320 is an apocalyptic number.

1357320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1357320 is an abundant number, since it is smaller than the sum of its proper divisors (2715000).

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

1357320 is a wasteful number, since it uses less digits than its factorization.

1357320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11325 (or 11321 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 1357320 is about 1165.0407718187. The cubic root of 1357320 is about 110.7203413763.

The spelling of 1357320 in words is "one million, three hundred fifty-seven thousand, three hundred twenty".