20040713 has 8 divisors (see below), whose sum is σ = 24985920. Its totient is φ = 15616080.

The previous prime is 20040703. The next prime is 20040733. The reversal of 20040713 is 31704002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20040713 - 2¹⁸ = 19778569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20040691 and 20040700.

It is not an unprimeable number, because it can be changed into a prime (20040703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130058 + ... + 130211.

It is an arithmetic number, because the mean of its divisors is an integer number (3123240).

Almost surely, 2^20040713 is an apocalyptic number.

It is an amenable number.

20040713 is a deficient number, since it is larger than the sum of its proper divisors (4945207).

20040713 is a wasteful number, since it uses less digits than its factorization.

20040713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260287.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 20040713 is about 4476.6854926385. The cubic root of 20040713 is about 271.6258236281.

Adding to 20040713 its reverse (31704002), we get a palindrome (51744715).

The spelling of 20040713 in words is "twenty million, forty thousand, seven hundred thirteen".