402404113 has 4 divisors (see below), whose sum is σ = 419899968. Its totient is φ = 384908260.

The previous prime is 402404111. The next prime is 402404137. The reversal of 402404113 is 311404204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402404113 - 2¹ = 402404111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402404111) 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, 8747893 + ... + 8747938.

It is an arithmetic number, because the mean of its divisors is an integer number (104974992).

Almost surely, 2^402404113 is an apocalyptic number.

It is an amenable number.

402404113 is a deficient number, since it is larger than the sum of its proper divisors (17495855).

402404113 is a wasteful number, since it uses less digits than its factorization.

402404113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17495854.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 402404113 is about 20060.0127866360. The cubic root of 402404113 is about 738.2794902309.

Adding to 402404113 its reverse (311404204), we get a palindrome (713808317).

Subtracting from 402404113 its reverse (311404204), we obtain a palindrome (90999909).

The spelling of 402404113 in words is "four hundred two million, four hundred four thousand, one hundred thirteen".