20582260 has 12 divisors (see below), whose sum is σ = 43222788. Its totient is φ = 8232896.

The previous prime is 20582227. The next prime is 20582273. The reversal of 20582260 is 6228502.

It can be written as a sum of positive squares in 2 ways, for example, as 13749264 + 6832996 = 3708^2 + 2614^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514537 + ... + 514576.

It is an arithmetic number, because the mean of its divisors is an integer number (3601899).

Almost surely, 2^20582260 is an apocalyptic number.

20582260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20582260 is an abundant number, since it is smaller than the sum of its proper divisors (22640528).

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

20582260 is a wasteful number, since it uses less digits than its factorization.

20582260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029122 (or 1029120 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 20582260 is about 4536.7675717409. The cubic root of 20582260 is about 274.0507658081.

The spelling of 20582260 in words is "twenty million, five hundred eighty-two thousand, two hundred sixty".