402424142 has 8 divisors (see below), whose sum is σ = 635406600. Its totient is φ = 190621944.

The previous prime is 402424133. The next prime is 402424151. The reversal of 402424142 is 241424204.

It is an interprime number because it is at equal distance from previous prime (402424133) and next prime (402424151).

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, 5295017 + ... + 5295092.

It is an arithmetic number, because the mean of its divisors is an integer number (79425825).

Almost surely, 2^402424142 is an apocalyptic number.

402424142 is a deficient number, since it is larger than the sum of its proper divisors (232982458).

402424142 is a wasteful number, since it uses less digits than its factorization.

402424142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10590130.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 402424142 is about 20060.5120074239. The cubic root of 402424142 is about 738.2917389084.

Adding to 402424142 its reverse (241424204), we get a palindrome (643848346).

The spelling of 402424142 in words is "four hundred two million, four hundred twenty-four thousand, one hundred forty-two".