22061920 has 48 divisors (see below), whose sum is σ = 55194048. Its totient is φ = 8304640.

The previous prime is 22061917. The next prime is 22061933. The reversal of 22061920 is 2916022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22061891 and 22061900.

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, 1336 + ... + 6775.

It is an arithmetic number, because the mean of its divisors is an integer number (1149876).

Almost surely, 2^22061920 is an apocalyptic number.

22061920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22061920 is an abundant number, since it is smaller than the sum of its proper divisors (33132128).

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

22061920 is a wasteful number, since it uses less digits than its factorization.

22061920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8143 (or 8135 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 22061920 is about 4697.0118160379. The cubic root of 22061920 is about 280.4665690545.

Adding to 22061920 its reverse (2916022), we get a palindrome (24977942).

The spelling of 22061920 in words is "twenty-two million, sixty-one thousand, nine hundred twenty".