13280690 has 16 divisors (see below), whose sum is σ = 24209280. Its totient is φ = 5244720.

The previous prime is 13280681. The next prime is 13280693. The reversal of 13280690 is 9608231.

13280690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13280690² = 352753453752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13280693) 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, 7616 + ... + 9195.

It is an arithmetic number, because the mean of its divisors is an integer number (1513080).

Almost surely, 2^13280690 is an apocalyptic number.

13280690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13280690 is a deficient number, since it is larger than the sum of its proper divisors (10928590).

13280690 is a wasteful number, since it uses less digits than its factorization.

13280690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16897.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 13280690 is about 3644.2681021023. The cubic root of 13280690 is about 236.8137308091.

The spelling of 13280690 in words is "thirteen million, two hundred eighty thousand, six hundred ninety".