20426036 has 24 divisors (see below), whose sum is σ = 37255680. Its totient is φ = 9790400.

The previous prime is 20426017. The next prime is 20426039. The reversal of 20426036 is 63062402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20426039) 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, 8621 + ... + 10731.

It is an arithmetic number, because the mean of its divisors is an integer number (1552320).

Almost surely, 2^20426036 is an apocalyptic number.

It is an amenable number.

20426036 is a deficient number, since it is larger than the sum of its proper divisors (16829644).

20426036 is a wasteful number, since it uses less digits than its factorization.

20426036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215 (or 2213 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 20426036 is about 4519.5172308555. The cubic root of 20426036 is about 273.3556350367.

Adding to 20426036 its reverse (63062402), we get a palindrome (83488438).

The spelling of 20426036 in words is "twenty million, four hundred twenty-six thousand, thirty-six".