402440113 has 2 divisors, whose sum is σ = 402440114. Its totient is φ = 402440112.

The previous prime is 402440081. The next prime is 402440147. The reversal of 402440113 is 311044204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345104929 + 57335184 = 18577^2 + 7572^2 .

It is a cyclic number.

It is not a de Polignac number, because 402440113 - 2⁵ = 402440081 is a prime.

It is not a weakly prime, because it can be changed into another prime (402440173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201220056 + 201220057.

It is an arithmetic number, because the mean of its divisors is an integer number (201220057).

Almost surely, 2^402440113 is an apocalyptic number.

It is an amenable number.

402440113 is a deficient number, since it is larger than the sum of its proper divisors (1).

402440113 is an equidigital number, since it uses as much as digits as its factorization.

402440113 is an odious number, because the sum of its binary digits is odd.

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

The square root of 402440113 is about 20060.9100740719. The cubic root of 402440113 is about 738.3015056364.

Adding to 402440113 its reverse (311044204), we get a palindrome (713484317).

The spelling of 402440113 in words is "four hundred two million, four hundred forty thousand, one hundred thirteen".