402622234 has 32 divisors (see below), whose sum is σ = 731759616. Its totient is φ = 162466560.

The previous prime is 402622219. The next prime is 402622243. The reversal of 402622234 is 432226204.

It is a super-2 number, since 2×402622234² = 324209326622301512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402622199 and 402622208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3522 + ... + 28594.

It is an arithmetic number, because the mean of its divisors is an integer number (22867488).

Almost surely, 2^402622234 is an apocalyptic number.

402622234 is a deficient number, since it is larger than the sum of its proper divisors (329137382).

402622234 is a wasteful number, since it uses less digits than its factorization.

402622234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25150.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 402622234 is about 20065.4487614905. The cubic root of 402622234 is about 738.4128596212.

Adding to 402622234 its reverse (432226204), we get a palindrome (834848438).

The spelling of 402622234 in words is "four hundred two million, six hundred twenty-two thousand, two hundred thirty-four".