20426132 has 18 divisors (see below), whose sum is σ = 36292074. Its totient is φ = 10059280.

The previous prime is 20426111. The next prime is 20426137. The reversal of 20426132 is 23162402.

It can be written as a sum of positive squares in only one way, i.e., 10666756 + 9759376 = 3266^2 + 3124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20426137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19658 + ... + 20670.

Almost surely, 2^20426132 is an apocalyptic number.

It is an amenable number.

20426132 is a deficient number, since it is larger than the sum of its proper divisors (15865942).

20426132 is a wasteful number, since it uses less digits than its factorization.

20426132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20426132 is about 4519.5278514464. The cubic root of 20426132 is about 273.3560632826.

Adding to 20426132 its reverse (23162402), we get a palindrome (43588534).

The spelling of 20426132 in words is "twenty million, four hundred twenty-six thousand, one hundred thirty-two".