402243342 has 16 divisors (see below), whose sum is σ = 804841680. Its totient is φ = 134021952.

The previous prime is 402243323. The next prime is 402243379. The reversal of 402243342 is 243342204.

It is a congruent number.

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, 1284 + ... + 28392.

It is an arithmetic number, because the mean of its divisors is an integer number (50302605).

Almost surely, 2^402243342 is an apocalyptic number.

402243342 is an abundant number, since it is smaller than the sum of its proper divisors (402598338).

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

402243342 is a wasteful number, since it uses less digits than its factorization.

402243342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29587.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 402243342 is about 20056.0051356196. The cubic root of 402243342 is about 738.1811564592.

Adding to 402243342 its reverse (243342204), we get a palindrome (645585546).

The spelling of 402243342 in words is "four hundred two million, two hundred forty-three thousand, three hundred forty-two".