22010724 has 48 divisors (see below), whose sum is σ = 59552640. Its totient is φ = 7017120.

The previous prime is 22010707. The next prime is 22010761. The reversal of 22010724 is 42701022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22010697 and 22010706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1947 + ... + 6914.

It is an arithmetic number, because the mean of its divisors is an integer number (1240680).

Almost surely, 2^22010724 is an apocalyptic number.

It is an amenable number.

22010724 is an abundant number, since it is smaller than the sum of its proper divisors (37541916).

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

22010724 is a wasteful number, since it uses less digits than its factorization.

22010724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8897 (or 8889 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 22010724 is about 4691.5588027861. The cubic root of 22010724 is about 280.2494545634.

Adding to 22010724 its reverse (42701022), we get a palindrome (64711746).

The spelling of 22010724 in words is "twenty-two million, ten thousand, seven hundred twenty-four".