20434982 has 8 divisors (see below), whose sum is σ = 30701376. Its totient is φ = 10201192.

The previous prime is 20434979. The next prime is 20434991. The reversal of 20434982 is 28943402.

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, 6518 + ... + 9129.

It is an arithmetic number, because the mean of its divisors is an integer number (3837672).

Almost surely, 2^20434982 is an apocalyptic number.

20434982 is a deficient number, since it is larger than the sum of its proper divisors (10266394).

20434982 is a wasteful number, since it uses less digits than its factorization.

20434982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16302.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 20434982 is about 4520.5068299915. The cubic root of 20434982 is about 273.3955364414.

The spelling of 20434982 in words is "twenty million, four hundred thirty-four thousand, nine hundred eighty-two".