402222423 has 8 divisors (see below), whose sum is σ = 549377136. Its totient is φ = 261608000.

The previous prime is 402222409. The next prime is 402222433. The reversal of 402222423 is 324222204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402222423 - 2⁵ = 402222391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402222423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402222433) 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, 1634928 + ... + 1635173.

It is an arithmetic number, because the mean of its divisors is an integer number (68672142).

Almost surely, 2^402222423 is an apocalyptic number.

402222423 is a deficient number, since it is larger than the sum of its proper divisors (147154713).

402222423 is a wasteful number, since it uses less digits than its factorization.

402222423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270145.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 402222423 is about 20055.4836142138. The cubic root of 402222423 is about 738.1683596621.

Adding to 402222423 its reverse (324222204), we get a palindrome (726444627).

The spelling of 402222423 in words is "four hundred two million, two hundred twenty-two thousand, four hundred twenty-three".