402331342 has 32 divisors (see below), whose sum is σ = 698906880. Its totient is φ = 170142720.

The previous prime is 402331337. The next prime is 402331373. The reversal of 402331342 is 243133204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627342 + ... + 627982.

It is an arithmetic number, because the mean of its divisors is an integer number (21840840).

Almost surely, 2^402331342 is an apocalyptic number.

402331342 is a deficient number, since it is larger than the sum of its proper divisors (296575538).

402331342 is a wasteful number, since it uses less digits than its factorization.

402331342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 402331342 is about 20058.1988722816. The cubic root of 402331342 is about 738.2349839134.

Adding to 402331342 its reverse (243133204), we get a palindrome (645464546).

The spelling of 402331342 in words is "four hundred two million, three hundred thirty-one thousand, three hundred forty-two".