402234311 has 4 divisors (see below), whose sum is σ = 402354912. Its totient is φ = 402113712.

The previous prime is 402234271. The next prime is 402234317. The reversal of 402234311 is 113432204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402234311 - 2²² = 398040007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402234317) 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, 55151 + ... + 62016.

It is an arithmetic number, because the mean of its divisors is an integer number (100588728).

Almost surely, 2^402234311 is an apocalyptic number.

402234311 is a deficient number, since it is larger than the sum of its proper divisors (120601).

402234311 is a wasteful number, since it uses less digits than its factorization.

402234311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120600.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 402234311 is about 20055.7799898184. The cubic root of 402234311 is about 738.1756319726.

Adding to 402234311 its reverse (113432204), we get a palindrome (515666515).

The spelling of 402234311 in words is "four hundred two million, two hundred thirty-four thousand, three hundred eleven".