226231640 has 16 divisors (see below), whose sum is σ = 509021280. Its totient is φ = 90492640.

The previous prime is 226231609. The next prime is 226231661. The reversal of 226231640 is 46132622.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2827856 + ... + 2827935.

It is an arithmetic number, because the mean of its divisors is an integer number (31813830).

Almost surely, 2^226231640 is an apocalyptic number.

226231640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226231640 is an abundant number, since it is smaller than the sum of its proper divisors (282789640).

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

226231640 is a wasteful number, since it uses less digits than its factorization.

226231640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5655802 (or 5655798 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 226231640 is about 15040.9986370586. The cubic root of 226231640 is about 609.3279708260.

The spelling of 226231640 in words is "two hundred twenty-six million, two hundred thirty-one thousand, six hundred forty".