20756026 has 8 divisors (see below), whose sum is σ = 31203540. Its totient is φ = 10354848.

The previous prime is 20756009. The next prime is 20756027. The reversal of 20756026 is 62065702.

It can be written as a sum of positive squares in 2 ways, for example, as 20259001 + 497025 = 4501^2 + 705^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20755985 and 20756003.

It is not an unprimeable number, because it can be changed into a prime (20756027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10441 + ... + 12268.

Almost surely, 2^20756026 is an apocalyptic number.

20756026 is a deficient number, since it is larger than the sum of its proper divisors (10447514).

20756026 is a wasteful number, since it uses less digits than its factorization.

20756026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23168.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 20756026 is about 4555.8781809877. The cubic root of 20756026 is about 274.8198312979.

The spelling of 20756026 in words is "twenty million, seven hundred fifty-six thousand, twenty-six".