402315253 has 16 divisors (see below), whose sum is σ = 434430720. Its totient is φ = 371367936.

The previous prime is 402315223. The next prime is 402315271. The reversal of 402315253 is 352513204.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402315253 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 (402315223) 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, 228625 + ... + 230377.

It is an arithmetic number, because the mean of its divisors is an integer number (27151920).

Almost surely, 2^402315253 is an apocalyptic number.

It is an amenable number.

402315253 is a deficient number, since it is larger than the sum of its proper divisors (32115467).

402315253 is a wasteful number, since it uses less digits than its factorization.

402315253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 402315253 is about 20057.7978103280. The cubic root of 402315253 is about 738.2251432508.

Adding to 402315253 its reverse (352513204), we get a palindrome (754828457).

The spelling of 402315253 in words is "four hundred two million, three hundred fifteen thousand, two hundred fifty-three".