20582373 has 16 divisors (see below), whose sum is σ = 32446080. Its totient is φ = 11355456.

The previous prime is 20582321. The next prime is 20582383. The reversal of 20582373 is 37328502.

It is not a de Polignac number, because 20582373 - 2¹² = 20578277 is a prime.

It is a super-2 number, since 2×20582373² = 847268156622258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20582373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20582383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16290 + ... + 17507.

It is an arithmetic number, because the mean of its divisors is an integer number (2027880).

Almost surely, 2^20582373 is an apocalyptic number.

It is an amenable number.

20582373 is a deficient number, since it is larger than the sum of its proper divisors (11863707).

20582373 is a wasteful number, since it uses less digits than its factorization.

20582373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33836.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 20582373 is about 4536.7800255247. The cubic root of 20582373 is about 274.0512673352.

The spelling of 20582373 in words is "twenty million, five hundred eighty-two thousand, three hundred seventy-three".