20726532 has 36 divisors (see below), whose sum is σ = 54201420. Its totient is φ = 6670272.

The previous prime is 20726521. The next prime is 20726539. The reversal of 20726532 is 23562702.

20726532 is a `hidden beast` number, since 2 + 0 + 7 + 2 + 653 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6843456 + 13883076 = 2616^2 + 3726^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 20726496 and 20726505.

It is not an unprimeable number, because it can be changed into a prime (20726539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8883 + ... + 10970.

It is an arithmetic number, because the mean of its divisors is an integer number (1505595).

Almost surely, 2^20726532 is an apocalyptic number.

It is an amenable number.

20726532 is an abundant number, since it is smaller than the sum of its proper divisors (33474888).

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

20726532 is a wasteful number, since it uses less digits than its factorization.

20726532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19892 (or 19887 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20726532 is about 4552.6401131651. The cubic root of 20726532 is about 274.6895979797.

The spelling of 20726532 in words is "twenty million, seven hundred twenty-six thousand, five hundred thirty-two".