10402013 has 4 divisors (see below), whose sum is σ = 10414140. Its totient is φ = 10389888.

The previous prime is 10401973. The next prime is 10402031. The reversal of 10402013 is 31020401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1026169 + 9375844 = 1013^2 + 3062^2 .

It is a cyclic number.

It is not a de Polignac number, because 10402013 - 2⁸ = 10401757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10401985 and 10402003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402033) 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, 4670 + ... + 6527.

It is an arithmetic number, because the mean of its divisors is an integer number (2603535).

Almost surely, 2^10402013 is an apocalyptic number.

It is an amenable number.

10402013 is a deficient number, since it is larger than the sum of its proper divisors (12127).

10402013 is an equidigital number, since it uses as much as digits as its factorization.

10402013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12126.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 10402013 is about 3225.2151866193. The cubic root of 10402013 is about 218.2926588695.

Adding to 10402013 its reverse (31020401), we get a palindrome (41422414).

The spelling of 10402013 in words is "ten million, four hundred two thousand, thirteen".