226790478 has 24 divisors (see below), whose sum is σ = 492231168. Its totient is φ = 75465792.

The previous prime is 226790477. The next prime is 226790483. The reversal of 226790478 is 874097622.

It is a super-2 number, since 2×226790478² = 102867841822936968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226790477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51 + ... + 21297.

It is an arithmetic number, because the mean of its divisors is an integer number (20509632).

Almost surely, 2^226790478 is an apocalyptic number.

226790478 is an abundant number, since it is smaller than the sum of its proper divisors (265440690).

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

226790478 is a wasteful number, since it uses less digits than its factorization.

226790478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21848 (or 21845 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 226790478 is about 15059.5643363279. The cubic root of 226790478 is about 609.8292794667.

The spelling of 226790478 in words is "two hundred twenty-six million, seven hundred ninety thousand, four hundred seventy-eight".