402424227 has 8 divisors (see below), whose sum is σ = 596184080. Its totient is φ = 268282800.

The previous prime is 402424223. The next prime is 402424303. The reversal of 402424227 is 722424204.

It is not a de Polignac number, because 402424227 - 2² = 402424223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 14904601 = 402424227 / (4 + 0 + 2 + 4 + 2 + 4 + 2 + 2 + 7).

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 402424227.

It is not an unprimeable number, because it can be changed into a prime (402424223) 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, 7452274 + ... + 7452327.

It is an arithmetic number, because the mean of its divisors is an integer number (74523010).

Almost surely, 2^402424227 is an apocalyptic number.

402424227 is a deficient number, since it is larger than the sum of its proper divisors (193759853).

402424227 is a wasteful number, since it uses less digits than its factorization.

402424227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14904610 (or 14904604 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 402424227 is about 20060.5141260138. The cubic root of 402424227 is about 738.2917908891.

The spelling of 402424227 in words is "four hundred two million, four hundred twenty-four thousand, two hundred twenty-seven".