403332013 has 4 divisors (see below), whose sum is σ = 460950880. Its totient is φ = 345713148.

The previous prime is 403331989. The next prime is 403332031. The reversal of 403332013 is 310233304.

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 403332013 - 2²⁵ = 369777581 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 (403332053) 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, 28809423 + ... + 28809436.

It is an arithmetic number, because the mean of its divisors is an integer number (115237720).

Almost surely, 2^403332013 is an apocalyptic number.

It is an amenable number.

403332013 is a deficient number, since it is larger than the sum of its proper divisors (57618867).

403332013 is an equidigital number, since it uses as much as digits as its factorization.

403332013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57618866.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 403332013 is about 20083.1275701769. The cubic root of 403332013 is about 738.8465186157.

Adding to 403332013 its reverse (310233304), we get a palindrome (713565317).

It can be divided in two parts, 4033 and 32013, that added together give a triangular number (36046 = T₂₆₈).

The spelling of 403332013 in words is "four hundred three million, three hundred thirty-two thousand, thirteen".