13225890 has 16 divisors (see below), whose sum is σ = 31742208. Its totient is φ = 3526896.

The previous prime is 13225873. The next prime is 13225931. The reversal of 13225890 is 9852231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 440863 = 13225890 / (1 + 3 + 2 + 2 + 5 + 8 + 9 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220402 + ... + 220461.

It is an arithmetic number, because the mean of its divisors is an integer number (1983888).

Almost surely, 2^13225890 is an apocalyptic number.

13225890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13225890 is an abundant number, since it is smaller than the sum of its proper divisors (18516318).

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

13225890 is a wasteful number, since it uses less digits than its factorization.

13225890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440873.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 13225890 is about 3636.7416735314. The cubic root of 13225890 is about 236.4875609344.

The spelling of 13225890 in words is "thirteen million, two hundred twenty-five thousand, eight hundred ninety".