22724037 has 16 divisors (see below), whose sum is σ = 38474880. Its totient is φ = 12985056.

The previous prime is 22724029. The next prime is 22724041. The reversal of 22724037 is 73042722.

It is not a de Polignac number, because 22724037 - 2³ = 22724029 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 22724037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22720037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59928 + ... + 60305.

It is an arithmetic number, because the mean of its divisors is an integer number (2404680).

Almost surely, 2^22724037 is an apocalyptic number.

22724037 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22724037 is a deficient number, since it is larger than the sum of its proper divisors (15750843).

22724037 is a wasteful number, since it uses less digits than its factorization.

22724037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120249 (or 120243 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 22724037 is about 4766.9735682087. The cubic root of 22724037 is about 283.2447241561.

Adding to 22724037 its reverse (73042722), we get a palindrome (95766759).

The spelling of 22724037 in words is "twenty-two million, seven hundred twenty-four thousand, thirty-seven".