402304142 has 8 divisors (see below), whose sum is σ = 603542016. Its totient is φ = 201123472.

The previous prime is 402304139. The next prime is 402304151. The reversal of 402304142 is 241403204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16883 + ... + 33009.

It is an arithmetic number, because the mean of its divisors is an integer number (75442752).

Almost surely, 2^402304142 is an apocalyptic number.

402304142 is a deficient number, since it is larger than the sum of its proper divisors (201237874).

402304142 is a wasteful number, since it uses less digits than its factorization.

402304142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28602.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 402304142 is about 20057.5208338419. The cubic root of 402304142 is about 738.2183471748.

Adding to 402304142 its reverse (241403204), we get a palindrome (643707346).

The spelling of 402304142 in words is "four hundred two million, three hundred four thousand, one hundred forty-two".