402304042 has 16 divisors (see below), whose sum is σ = 692762112. Its totient is φ = 171641520.

The previous prime is 402304003. The next prime is 402304051. The reversal of 402304042 is 240403204.

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, 61309 + ... + 67552.

It is an arithmetic number, because the mean of its divisors is an integer number (43297632).

Almost surely, 2^402304042 is an apocalyptic number.

402304042 is a deficient number, since it is larger than the sum of its proper divisors (290458070).

402304042 is a wasteful number, since it uses less digits than its factorization.

402304042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129093.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 402304042 is about 20057.5183410112. The cubic root of 402304042 is about 738.2182860090.

Adding to 402304042 its reverse (240403204), we get a palindrome (642707246).

The spelling of 402304042 in words is "four hundred two million, three hundred four thousand, forty-two".