20726032 has 10 divisors (see below), whose sum is σ = 40156718. Its totient is φ = 10363008.

The previous prime is 20726029. The next prime is 20726047. The reversal of 20726032 is 23062702.

It can be written as a sum of positive squares in only one way, i.e., 20394256 + 331776 = 4516^2 + 576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20725994 and 20726012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647673 + ... + 647704.

Almost surely, 2^20726032 is an apocalyptic number.

It is an amenable number.

20726032 is a deficient number, since it is larger than the sum of its proper divisors (19430686).

20726032 is a wasteful number, since it uses less digits than its factorization.

20726032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295385 (or 1295379 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20726032 is about 4552.5851996421. The cubic root of 20726032 is about 274.6873891216.

Adding to 20726032 its reverse (23062702), we get a palindrome (43788734).

The spelling of 20726032 in words is "twenty million, seven hundred twenty-six thousand, thirty-two".