402222406 has 16 divisors (see below), whose sum is σ = 615535200. Its totient is φ = 197054208.

The previous prime is 402222391. The next prime is 402222409. The reversal of 402222406 is 604222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402222409) 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, 95350 + ... + 99478.

It is an arithmetic number, because the mean of its divisors is an integer number (38470950).

Almost surely, 2^402222406 is an apocalyptic number.

402222406 is a deficient number, since it is larger than the sum of its proper divisors (213312794).

402222406 is a wasteful number, since it uses less digits than its factorization.

402222406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 402222406 is about 20055.4831903896. The cubic root of 402222406 is about 738.1683492625.

The spelling of 402222406 in words is "four hundred two million, two hundred twenty-two thousand, four hundred six".