402500234 has 8 divisors (see below), whose sum is σ = 604221888. Its totient is φ = 201092940.

The previous prime is 402500233. The next prime is 402500257. The reversal of 402500234 is 432005204.

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

It is not an unprimeable number, because it can be changed into a prime (402500233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75362 + ... + 80525.

It is an arithmetic number, because the mean of its divisors is an integer number (75527736).

Almost surely, 2^402500234 is an apocalyptic number.

402500234 is a deficient number, since it is larger than the sum of its proper divisors (201721654).

402500234 is a wasteful number, since it uses less digits than its factorization.

402500234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157180.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 402500234 is about 20062.4084795420. The cubic root of 402500234 is about 738.3382690481.

Adding to 402500234 its reverse (432005204), we get a palindrome (834505438).

The spelling of 402500234 in words is "four hundred two million, five hundred thousand, two hundred thirty-four".