402200226 has 12 divisors (see below), whose sum is σ = 871433862. Its totient is φ = 134066736.

The previous prime is 402200207. The next prime is 402200243. The reversal of 402200226 is 622002204.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 329967225 + 72233001 = 18165^2 + 8499^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 22344457 = 402200226 / (4 + 0 + 2 + 2 + 0 + 0 + 2 + 2 + 6).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 402200199 and 402200208.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11172211 + ... + 11172246.

Almost surely, 2^402200226 is an apocalyptic number.

402200226 is an abundant number, since it is smaller than the sum of its proper divisors (469233636).

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

402200226 is a wasteful number, since it uses less digits than its factorization.

402200226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22344465 (or 22344462 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 402200226 is about 20054.9302167821. The cubic root of 402200226 is about 738.1547805878.

The spelling of 402200226 in words is "four hundred two million, two hundred thousand, two hundred twenty-six".