20467136 has 28 divisors (see below), whose sum is σ = 41114472. Its totient is φ = 10107648.

The previous prime is 20467129. The next prime is 20467141. The reversal of 20467136 is 63176402.

It is a junction number, because it is equal to n+sod(n) for n = 20467099 and 20467108.

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, 3386 + ... + 7238.

It is an arithmetic number, because the mean of its divisors is an integer number (1468374).

Almost surely, 2^20467136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20467136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20557236).

20467136 is an abundant number, since it is smaller than the sum of its proper divisors (20647336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20467136 is an equidigital number, since it uses as much as digits as its factorization.

20467136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3948 (or 3938 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 20467136 is about 4524.0618917075. The cubic root of 20467136 is about 273.5388552760.

The spelling of 20467136 in words is "twenty million, four hundred sixty-seven thousand, one hundred thirty-six".