20842332 has 48 divisors (see below), whose sum is σ = 55840512. Its totient is φ = 5927040.

The previous prime is 20842319. The next prime is 20842337. The reversal of 20842332 is 23324802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20842337) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23163 + ... + 24045.

It is an arithmetic number, because the mean of its divisors is an integer number (1163344).

Almost surely, 2^20842332 is an apocalyptic number.

It is an amenable number.

20842332 is an abundant number, since it is smaller than the sum of its proper divisors (34998180).

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

20842332 is a wasteful number, since it uses less digits than its factorization.

20842332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20842332 is about 4565.3402939978. The cubic root of 20842332 is about 275.2002156288.

The spelling of 20842332 in words is "twenty million, eight hundred forty-two thousand, three hundred thirty-two".