22740516 has 18 divisors (see below), whose sum is σ = 57483062. Its totient is φ = 7580160.

The previous prime is 22740499. The next prime is 22740521. The reversal of 22740516 is 61504722.

It can be written as a sum of positive squares in only one way, i.e., 18455616 + 4284900 = 4296^2 + 2070^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 22740516.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 315805 + ... + 315876.

Almost surely, 2^22740516 is an apocalyptic number.

It is an amenable number.

22740516 is an abundant number, since it is smaller than the sum of its proper divisors (34742546).

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

22740516 is a wasteful number, since it uses less digits than its factorization.

22740516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631691 (or 631686 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 22740516 is about 4768.7017101094. The cubic root of 22740516 is about 283.3131753440.

The spelling of 22740516 in words is "twenty-two million, seven hundred forty thousand, five hundred sixteen".