20090582 has 8 divisors (see below), whose sum is σ = 30212976. Its totient is φ = 10019592.

The previous prime is 20090561. The next prime is 20090599. The reversal of 20090582 is 28509002.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 11858 + ... + 13445.

It is an arithmetic number, because the mean of its divisors is an integer number (3776622).

Almost surely, 2^20090582 is an apocalyptic number.

20090582 is a deficient number, since it is larger than the sum of its proper divisors (10122394).

20090582 is a wasteful number, since it uses less digits than its factorization.

20090582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25702.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 20090582 is about 4482.2518893967. The cubic root of 20090582 is about 271.8509401706.

Adding to 20090582 its reverse (28509002), we get a palindrome (48599584).

The spelling of 20090582 in words is "twenty million, ninety thousand, five hundred eighty-two".