20413012 has 12 divisors (see below), whose sum is σ = 35792596. Its totient is φ = 10186560.

The previous prime is 20412991. The next prime is 20413021. The reversal of 20413012 is 21031402.

It can be written as a sum of positive squares in 2 ways, for example, as 11195716 + 9217296 = 3346^2 + 3036^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20412983 and 20413001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553 + ... + 6880.

Almost surely, 2^20413012 is an apocalyptic number.

It is an amenable number.

20413012 is a deficient number, since it is larger than the sum of its proper divisors (15379584).

20413012 is a wasteful number, since it uses less digits than its factorization.

20413012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9978 (or 9976 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20413012 is about 4518.0761392433. The cubic root of 20413012 is about 273.2975238963.

Adding to 20413012 its reverse (21031402), we get a palindrome (41444414).

The spelling of 20413012 in words is "twenty million, four hundred thirteen thousand, twelve".