20413007 has 4 divisors (see below), whose sum is σ = 20426520. Its totient is φ = 20399496.

The previous prime is 20412991. The next prime is 20413021. The reversal of 20413007 is 70031402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20413007 - 2⁴ = 20412991 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 (20413607) 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, 4157 + ... + 7622.

It is an arithmetic number, because the mean of its divisors is an integer number (5106630).

Almost surely, 2^20413007 is an apocalyptic number.

20413007 is a deficient number, since it is larger than the sum of its proper divisors (13513).

20413007 is a wasteful number, since it uses less digits than its factorization.

20413007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13512.

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

The square root of 20413007 is about 4518.0755859104. The cubic root of 20413007 is about 273.2975015823.

Adding to 20413007 its reverse (70031402), we get a palindrome (90444409).

The spelling of 20413007 in words is "twenty million, four hundred thirteen thousand, seven".