4003402013 has 4 divisors (see below), whose sum is σ = 4311356028. Its totient is φ = 3695448000.

The previous prime is 4003402009. The next prime is 4003402019. The reversal of 4003402013 is 3102043004.

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 1277204644 + 2726197369 = 35738^2 + 52213^2 .

It is a cyclic number.

It is not a de Polignac number, because 4003402013 - 2² = 4003402009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4003401982 and 4003402000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4003402019) 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, 153976988 + ... + 153977013.

It is an arithmetic number, because the mean of its divisors is an integer number (1077839007).

Almost surely, 2^4003402013 is an apocalyptic number.

It is an amenable number.

4003402013 is a deficient number, since it is larger than the sum of its proper divisors (307954015).

4003402013 is a wasteful number, since it uses less digits than its factorization.

4003402013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307954014.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 4003402013 is about 63272.4427614424. The cubic root of 4003402013 is about 1587.8509543624.

Adding to 4003402013 its reverse (3102043004), we get a palindrome (7105445017).

The spelling of 4003402013 in words is "four billion, three million, four hundred two thousand, thirteen".