20612982 has 16 divisors (see below), whose sum is σ = 44397360. Its totient is φ = 6342432.

The previous prime is 20612957. The next prime is 20613029. The reversal of 20612982 is 28921602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132057 + ... + 132212.

It is an arithmetic number, because the mean of its divisors is an integer number (2774835).

Almost surely, 2^20612982 is an apocalyptic number.

20612982 is an abundant number, since it is smaller than the sum of its proper divisors (23784378).

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

20612982 is a wasteful number, since it uses less digits than its factorization.

20612982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264287.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 20612982 is about 4540.1522000920. The cubic root of 20612982 is about 274.1870514905.

The spelling of 20612982 in words is "twenty million, six hundred twelve thousand, nine hundred eighty-two".