402432142 has 64 divisors (see below), whose sum is σ = 738017280. Its totient is φ = 160963200.

The previous prime is 402432119. The next prime is 402432161. The reversal of 402432142 is 241234204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2223292 + ... + 2223472.

It is an arithmetic number, because the mean of its divisors is an integer number (11531520).

Almost surely, 2^402432142 is an apocalyptic number.

402432142 is a deficient number, since it is larger than the sum of its proper divisors (335585138).

402432142 is a wasteful number, since it uses less digits than its factorization.

402432142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 402432142 is about 20060.7114031382. The cubic root of 402432142 is about 738.2966311719.

Adding to 402432142 its reverse (241234204), we get a palindrome (643666346).

The spelling of 402432142 in words is "four hundred two million, four hundred thirty-two thousand, one hundred forty-two".