20582842 has 24 divisors (see below), whose sum is σ = 36197280. Its totient is φ = 8751960.

The previous prime is 20582827. The next prime is 20582867. The reversal of 20582842 is 24828502.

It is a super-3 number, since 3×20582842³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12867 + ... + 14377.

It is an arithmetic number, because the mean of its divisors is an integer number (1508220).

Almost surely, 2^20582842 is an apocalyptic number.

20582842 is a deficient number, since it is larger than the sum of its proper divisors (15614438).

20582842 is a wasteful number, since it uses less digits than its factorization.

20582842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666 (or 1659 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 20582842 is about 4536.8317138726. The cubic root of 20582842 is about 274.0533488747.

It can be divided in two parts, 2058 and 2842, that added together give a square (4900 = 70²).

The spelling of 20582842 in words is "twenty million, five hundred eighty-two thousand, eight hundred forty-two".