226531290 has 32 divisors (see below), whose sum is σ = 575657280. Its totient is φ = 56854784.

The previous prime is 226531289. The next prime is 226531313. The reversal of 226531290 is 92135622.

226531290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221580 + ... + 222599.

It is an arithmetic number, because the mean of its divisors is an integer number (17989290).

Almost surely, 2^226531290 is an apocalyptic number.

226531290 is an abundant number, since it is smaller than the sum of its proper divisors (349125990).

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

226531290 is a wasteful number, since it uses less digits than its factorization.

226531290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444206.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 226531290 is about 15050.9564480135. The cubic root of 226531290 is about 609.5968759958.

The spelling of 226531290 in words is "two hundred twenty-six million, five hundred thirty-one thousand, two hundred ninety".