23420982 has 32 divisors (see below), whose sum is σ = 51625728. Its totient is φ = 7037856.

The previous prime is 23420933. The next prime is 23421001. The reversal of 23420982 is 28902432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138 + ... + 6845.

It is an arithmetic number, because the mean of its divisors is an integer number (1613304).

Almost surely, 2^23420982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23420982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25812864).

23420982 is an abundant number, since it is smaller than the sum of its proper divisors (28204746).

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

23420982 is a wasteful number, since it uses less digits than its factorization.

23420982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7044.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 23420982 is about 4839.5229103704. The cubic root of 23420982 is about 286.1113150077. Note that the first 3 decimals are identical.

The spelling of 23420982 in words is "twenty-three million, four hundred twenty thousand, nine hundred eighty-two".