20413037 has 4 divisors (see below), whose sum is σ = 20457216. Its totient is φ = 20368860.

The previous prime is 20413033. The next prime is 20413051. The reversal of 20413037 is 73031402.

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 20413037 - 2² = 20413033 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 (20413033) 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, 21389 + ... + 22322.

It is an arithmetic number, because the mean of its divisors is an integer number (5114304).

Almost surely, 2^20413037 is an apocalyptic number.

It is an amenable number.

20413037 is a deficient number, since it is larger than the sum of its proper divisors (44179).

20413037 is an equidigital number, since it uses as much as digits as its factorization.

20413037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44178.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 20413037 is about 4518.0789059068. The cubic root of 20413037 is about 273.2976354662.

Adding to 20413037 its reverse (73031402), we get a palindrome (93444439).

The spelling of 20413037 in words is "twenty million, four hundred thirteen thousand, thirty-seven".