402120334 has 32 divisors (see below), whose sum is σ = 760492800. Its totient is φ = 154904640.

The previous prime is 402120319. The next prime is 402120337. The reversal of 402120334 is 433021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402120337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 964 + ... + 28375.

It is an arithmetic number, because the mean of its divisors is an integer number (23765400).

Almost surely, 2^402120334 is an apocalyptic number.

402120334 is a deficient number, since it is larger than the sum of its proper divisors (358372466).

402120334 is a wasteful number, since it uses less digits than its factorization.

402120334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29448.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 402120334 is about 20052.9382884404. The cubic root of 402120334 is about 738.1059023069.

Adding to 402120334 its reverse (433021204), we get a palindrome (835141538).

The spelling of 402120334 in words is "four hundred two million, one hundred twenty thousand, three hundred thirty-four".