20982754 has 16 divisors (see below), whose sum is σ = 33982200. Its totient is φ = 9659520.

The previous prime is 20982751. The next prime is 20982757. The reversal of 20982754 is 45728902.

It is an interprime number because it is at equal distance from previous prime (20982751) and next prime (20982757).

It can be written as a sum of positive squares in 4 ways, for example, as 10595025 + 10387729 = 3255^2 + 3223^2 .

It is not an unprimeable number, because it can be changed into a prime (20982751) 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, 12772 + ... + 14320.

Almost surely, 2^20982754 is an apocalyptic number.

20982754 is a deficient number, since it is larger than the sum of its proper divisors (12999446).

20982754 is a wasteful number, since it uses less digits than its factorization.

20982754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 20982754 is about 4580.6936156002. The cubic root of 20982754 is about 275.8168724996.

It can be divided in two parts, 20982 and 754, that added together give a triangular number (21736 = T₂₀₈).

The spelling of 20982754 in words is "twenty million, nine hundred eighty-two thousand, seven hundred fifty-four".