20037413 has 4 divisors (see below), whose sum is σ = 21859008. Its totient is φ = 18215820.

The previous prime is 20037401. The next prime is 20037421. The reversal of 20037413 is 31473002.

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 20037413 - 2¹⁰ = 20036389 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 (20037443) 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, 910781 + ... + 910802.

It is an arithmetic number, because the mean of its divisors is an integer number (5464752).

Almost surely, 2^20037413 is an apocalyptic number.

It is an amenable number.

20037413 is a deficient number, since it is larger than the sum of its proper divisors (1821595).

20037413 is a wasteful number, since it uses less digits than its factorization.

20037413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821594.

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

The square root of 20037413 is about 4476.3169012035. The cubic root of 20037413 is about 271.6109137390.

The spelling of 20037413 in words is "twenty million, thirty-seven thousand, four hundred thirteen".