402100342 has 8 divisors (see below), whose sum is σ = 689314896. Its totient is φ = 172328712.

The previous prime is 402100339. The next prime is 402100373. The reversal of 402100342 is 243001204.

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, 14360713 + ... + 14360740.

It is an arithmetic number, because the mean of its divisors is an integer number (86164362).

Almost surely, 2^402100342 is an apocalyptic number.

402100342 is a deficient number, since it is larger than the sum of its proper divisors (287214554).

402100342 is a wasteful number, since it uses less digits than its factorization.

402100342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28721462.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 402100342 is about 20052.4398016800. The cubic root of 402100342 is about 738.0936700997.

Adding to 402100342 its reverse (243001204), we get a palindrome (645101546).

The spelling of 402100342 in words is "four hundred two million, one hundred thousand, three hundred forty-two".