20726576 has 40 divisors (see below), whose sum is σ = 43528464. Its totient is φ = 9504000.

The previous prime is 20726557. The next prime is 20726579. The reversal of 20726576 is 67562702.

It is a happy number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (20726579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52010 + ... + 52406.

Almost surely, 2^20726576 is an apocalyptic number.

20726576 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20726576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21764232).

20726576 is an abundant number, since it is smaller than the sum of its proper divisors (22801888).

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

20726576 is a wasteful number, since it uses less digits than its factorization.

20726576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 20726576 is about 4552.6449455234. The cubic root of 20726576 is about 274.6897923575.

The spelling of 20726576 in words is "twenty million, seven hundred twenty-six thousand, five hundred seventy-six".