402430311 has 6 divisors (see below), whose sum is σ = 581288240. Its totient is φ = 268286868.

The previous prime is 402430291. The next prime is 402430319. The reversal of 402430311 is 113034204.

It is not a de Polignac number, because 402430311 - 2¹⁴ = 402413927 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 (402430319) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 22357231 + ... + 22357248.

Almost surely, 2^402430311 is an apocalyptic number.

402430311 is a deficient number, since it is larger than the sum of its proper divisors (178857929).

402430311 is a wasteful number, since it uses less digits than its factorization.

402430311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44714485 (or 44714482 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 402430311 is about 20060.6657666190. The cubic root of 402430311 is about 738.2955114608.

Adding to 402430311 its reverse (113034204), we get a palindrome (515464515).

The spelling of 402430311 in words is "four hundred two million, four hundred thirty thousand, three hundred eleven".