13570320 has 40 divisors (see below), whose sum is σ = 42068736. Its totient is φ = 3618688.

The previous prime is 13570307. The next prime is 13570367. The reversal of 13570320 is 2307531.

It is a happy number.

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

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, 28032 + ... + 28511.

Almost surely, 2^13570320 is an apocalyptic number.

13570320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13570320 is an abundant number, since it is smaller than the sum of its proper divisors (28498416).

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

13570320 is a wasteful number, since it uses less digits than its factorization.

13570320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56559 (or 56553 counting only the distinct ones).

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

The square root of 13570320 is about 3683.7915250459. The cubic root of 13570320 is about 238.5228718138.

Adding to 13570320 its reverse (2307531), we get a palindrome (15877851).

The spelling of 13570320 in words is "thirteen million, five hundred seventy thousand, three hundred twenty".