402113243 has 12 divisors (see below), whose sum is σ = 461863248. Its totient is φ = 342946560.

The previous prime is 402113177. The next prime is 402113287. The reversal of 402113243 is 342311204.

It is not a de Polignac number, because 402113243 - 2⁸ = 402112987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402113293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 872033 + ... + 872493.

It is an arithmetic number, because the mean of its divisors is an integer number (38488604).

Almost surely, 2^402113243 is an apocalyptic number.

402113243 is a deficient number, since it is larger than the sum of its proper divisors (59750005).

402113243 is an frugal number, since it uses more digits than its factorization.

402113243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 821 counting only the distinct ones).

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

The square root of 402113243 is about 20052.7614806540. The cubic root of 402113243 is about 738.1015636888.

Adding to 402113243 its reverse (342311204), we get a palindrome (744424447).

The spelling of 402113243 in words is "four hundred two million, one hundred thirteen thousand, two hundred forty-three".