402334042 has 16 divisors (see below), whose sum is σ = 664408800. Its totient is φ = 181200240.

The previous prime is 402334013. The next prime is 402334057. The reversal of 402334042 is 240433204.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81492 + ... + 86287.

It is an arithmetic number, because the mean of its divisors is an integer number (41525550).

Almost surely, 2^402334042 is an apocalyptic number.

402334042 is a deficient number, since it is larger than the sum of its proper divisors (262074758).

402334042 is a wasteful number, since it uses less digits than its factorization.

402334042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167901.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 402334042 is about 20058.2661763174. The cubic root of 402334042 is about 738.2366353135.

Adding to 402334042 its reverse (240433204), we get a palindrome (642767246).

The spelling of 402334042 in words is "four hundred two million, three hundred thirty-four thousand, forty-two".