310402421 has 8 divisors (see below), whose sum is σ = 354932160. Its totient is φ = 265919328.

The previous prime is 310402403. The next prime is 310402441. The reversal of 310402421 is 124204013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-310402421 is a prime.

It is a super-2 number, since 2×310402421² = 192699325925322482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 310402421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310402441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4010 + ... + 25236.

It is an arithmetic number, because the mean of its divisors is an integer number (44366520).

Almost surely, 2^310402421 is an apocalyptic number.

It is an amenable number.

310402421 is a deficient number, since it is larger than the sum of its proper divisors (44529739).

310402421 is a wasteful number, since it uses less digits than its factorization.

310402421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23323.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 310402421 is about 17618.2411437691. The cubic root of 310402421 is about 677.0826728674.

Adding to 310402421 its reverse (124204013), we get a palindrome (434606434).

The spelling of 310402421 in words is "three hundred ten million, four hundred two thousand, four hundred twenty-one".