402423242 has 16 divisors (see below), whose sum is σ = 650577312. Its totient is φ = 185588400.

The previous prime is 402423233. The next prime is 402423251. The reversal of 402423242 is 242324204.

It is an interprime number because it is at equal distance from previous prime (402423233) and next prime (402423251).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32393 + ... + 43059.

It is an arithmetic number, because the mean of its divisors is an integer number (40661082).

Almost surely, 2^402423242 is an apocalyptic number.

402423242 is a deficient number, since it is larger than the sum of its proper divisors (248154070).

402423242 is a wasteful number, since it uses less digits than its factorization.

402423242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12133.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 402423242 is about 20060.4895752821. The cubic root of 402423242 is about 738.2911885247.

Adding to 402423242 its reverse (242324204), we get a palindrome (644747446).

The spelling of 402423242 in words is "four hundred two million, four hundred twenty-three thousand, two hundred forty-two".