13309700 has 18 divisors (see below), whose sum is σ = 28882266. Its totient is φ = 5323840.

The previous prime is 13309697. The next prime is 13309729. The reversal of 13309700 is 790331.

It can be written as a sum of positive squares in 3 ways, for example, as 16384 + 13293316 = 128^2 + 3646^2 .

It is a super-2 number, since 2×13309700² = 354296228180000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66449 + ... + 66648.

Almost surely, 2^13309700 is an apocalyptic number.

13309700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13309700 is an abundant number, since it is smaller than the sum of its proper divisors (15572566).

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

13309700 is a wasteful number, since it uses less digits than its factorization.

13309700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133111 (or 133104 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 13309700 is about 3648.2461539759. The cubic root of 13309700 is about 236.9860353656.

The spelling of 13309700 in words is "thirteen million, three hundred nine thousand, seven hundred".