13240890 has 48 divisors (see below), whose sum is σ = 37077768. Its totient is φ = 3259008.

The previous prime is 13240889. The next prime is 13240921. The reversal of 13240890 is 9804231.

It can be written as a sum of positive squares in 4 ways, for example, as 11675889 + 1565001 = 3417^2 + 1251^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4489 + ... + 6828.

Almost surely, 2^13240890 is an apocalyptic number.

13240890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13240890 is an abundant number, since it is smaller than the sum of its proper divisors (23836878).

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

13240890 is a wasteful number, since it uses less digits than its factorization.

13240890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11343 (or 11340 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13240890 is about 3638.8033747374. The cubic root of 13240890 is about 236.5769304263.

The spelling of 13240890 in words is "thirteen million, two hundred forty thousand, eight hundred ninety".