20915082 has 12 divisors (see below), whose sum is σ = 45316050. Its totient is φ = 6971688.

The previous prime is 20915053. The next prime is 20915107. The reversal of 20915082 is 28051902.

It can be written as a sum of positive squares in only one way, i.e., 19793601 + 1121481 = 4449^2 + 1059^2 .

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 5 ways as a sum of consecutive naturals, for example, 580957 + ... + 580992.

Almost surely, 2^20915082 is an apocalyptic number.

20915082 is an abundant number, since it is smaller than the sum of its proper divisors (24400968).

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

20915082 is a wasteful number, since it uses less digits than its factorization.

20915082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161957 (or 1161954 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 20915082 is about 4573.3009959984. The cubic root of 20915082 is about 275.5200385511.

Adding to 20915082 its reverse (28051902), we get a palindrome (48966984).

The spelling of 20915082 in words is "twenty million, nine hundred fifteen thousand, eighty-two".