22473520 has 80 divisors (see below), whose sum is σ = 54996480. Its totient is φ = 8531712.

The previous prime is 22473427. The next prime is 22473547. The reversal of 22473520 is 2537422.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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, 161611 + ... + 161749.

It is an arithmetic number, because the mean of its divisors is an integer number (687456).

Almost surely, 2^22473520 is an apocalyptic number.

22473520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22473520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27498240).

22473520 is an abundant number, since it is smaller than the sum of its proper divisors (32522960).

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

22473520 is a wasteful number, since it uses less digits than its factorization.

22473520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 22473520 is about 4740.6244314436. The cubic root of 22473520 is about 282.2000157046.

The spelling of 22473520 in words is "twenty-two million, four hundred seventy-three thousand, five hundred twenty".