226686490 has 8 divisors (see below), whose sum is σ = 408035700. Its totient is φ = 90674592.

The previous prime is 226686487. The next prime is 226686547. The reversal of 226686490 is 94686622.

226686490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 221682321 + 5004169 = 14889^2 + 2237^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11334315 + ... + 11334334.

Almost surely, 2^226686490 is an apocalyptic number.

226686490 is a deficient number, since it is larger than the sum of its proper divisors (181349210).

226686490 is a wasteful number, since it uses less digits than its factorization.

226686490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22668656.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 226686490 is about 15056.1113837538. Note that the first 3 decimals coincide. The cubic root of 226686490 is about 609.7360588835.

The spelling of 226686490 in words is "two hundred twenty-six million, six hundred eighty-six thousand, four hundred ninety".