22063604 has 12 divisors (see below), whose sum is σ = 38752644. Its totient is φ = 10991424.

The previous prime is 22063597. The next prime is 22063619. The reversal of 22063604 is 40636022.

It can be written as a sum of positive squares in 2 ways, for example, as 1795600 + 20268004 = 1340^2 + 4502^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22063604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8849 + ... + 11064.

It is an arithmetic number, because the mean of its divisors is an integer number (3229387).

Almost surely, 2^22063604 is an apocalyptic number.

It is an amenable number.

22063604 is a deficient number, since it is larger than the sum of its proper divisors (16689040).

22063604 is a wasteful number, since it uses less digits than its factorization.

22063604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20194 (or 20192 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 22063604 is about 4697.1910755259. The cubic root of 22063604 is about 280.4737049352.

Adding to 22063604 its reverse (40636022), we get a palindrome (62699626).

The spelling of 22063604 in words is "twenty-two million, sixty-three thousand, six hundred four".