226290490 has 36 divisors (see below), whose sum is σ = 419398938. Its totient is φ = 87909360.

The previous prime is 226290487. The next prime is 226290499. The reversal of 226290490 is 94092622.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 203661441 + 22629049 = 14271^2 + 4757^2 .

It is a super-3 number, since 3×226290490³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (226290499) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3187155 + ... + 3187225.

Almost surely, 2^226290490 is an apocalyptic number.

226290490 is a deficient number, since it is larger than the sum of its proper divisors (193108448).

226290490 is an frugal number, since it uses more digits than its factorization.

226290490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 226290490 is about 15042.9548294210. The cubic root of 226290490 is about 609.3808014000.

The spelling of 226290490 in words is "two hundred twenty-six million, two hundred ninety thousand, four hundred ninety".