402004234 has 8 divisors (see below), whose sum is σ = 603161568. Its totient is φ = 200950380.

The previous prime is 402004217. The next prime is 402004247. The reversal of 402004234 is 432400204.

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

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, 15292 + ... + 32215.

It is an arithmetic number, because the mean of its divisors is an integer number (75395196).

Almost surely, 2^402004234 is an apocalyptic number.

402004234 is a deficient number, since it is larger than the sum of its proper divisors (201157334).

402004234 is a wasteful number, since it uses less digits than its factorization.

402004234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51740.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 402004234 is about 20050.0432418486. The cubic root of 402004234 is about 738.0348602692.

Adding to 402004234 its reverse (432400204), we get a palindrome (834404438).

The spelling of 402004234 in words is "four hundred two million, four thousand, two hundred thirty-four".