20499086 has 8 divisors (see below), whose sum is σ = 30820944. Its totient is φ = 10225440.

The previous prime is 20499077. The next prime is 20499113. The reversal of 20499086 is 68099402.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10970 + ... + 12701.

It is an arithmetic number, because the mean of its divisors is an integer number (3852618).

Almost surely, 2^20499086 is an apocalyptic number.

20499086 is a deficient number, since it is larger than the sum of its proper divisors (10321858).

20499086 is a wasteful number, since it uses less digits than its factorization.

20499086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24106.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 20499086 is about 4527.5916335288. The cubic root of 20499086 is about 273.6811162281.

The spelling of 20499086 in words is "twenty million, four hundred ninety-nine thousand, eighty-six".