226491637 has 8 divisors (see below), whose sum is σ = 232114176. Its totient is φ = 220902672.

The previous prime is 226491623. The next prime is 226491677. The reversal of 226491637 is 736194622.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 226491637 - 2⁷ = 226491509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226491637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226491677) 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, 5548 + ... + 21994.

It is an arithmetic number, because the mean of its divisors is an integer number (29014272).

Almost surely, 2^226491637 is an apocalyptic number.

It is an amenable number.

226491637 is a deficient number, since it is larger than the sum of its proper divisors (5622539).

226491637 is a wasteful number, since it uses less digits than its factorization.

226491637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16787.

The product of its digits is 108864, while the sum is 40.

The square root of 226491637 is about 15049.6390986628. The cubic root of 226491637 is about 609.5613051107.

The spelling of 226491637 in words is "two hundred twenty-six million, four hundred ninety-one thousand, six hundred thirty-seven".