22740436 has 12 divisors (see below), whose sum is σ = 39866400. Its totient is φ = 11350040.

The previous prime is 22740427. The next prime is 22740439. The reversal of 22740436 is 63404722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22740439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2350 + ... + 7141.

It is an arithmetic number, because the mean of its divisors is an integer number (3322200).

Almost surely, 2^22740436 is an apocalyptic number.

It is an amenable number.

22740436 is a deficient number, since it is larger than the sum of its proper divisors (17125964).

22740436 is a wasteful number, since it uses less digits than its factorization.

22740436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10094 (or 10092 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 22740436 is about 4768.6933220747. The cubic root of 22740436 is about 283.3128431164.

The spelling of 22740436 in words is "twenty-two million, seven hundred forty thousand, four hundred thirty-six".