22740555 has 8 divisors (see below), whose sum is σ = 36384912. Its totient is φ = 12128288.

The previous prime is 22740541. The next prime is 22740559. The reversal of 22740555 is 55504722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22740555 - 2⁷ = 22740427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22740559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758004 + ... + 758033.

It is an arithmetic number, because the mean of its divisors is an integer number (4548114).

Almost surely, 2^22740555 is an apocalyptic number.

22740555 is a deficient number, since it is larger than the sum of its proper divisors (13644357).

22740555 is a wasteful number, since it uses less digits than its factorization.

22740555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516045.

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 22740555 is about 4768.7057992709. The cubic root of 22740555 is about 283.3133373047.

The spelling of 22740555 in words is "twenty-two million, seven hundred forty thousand, five hundred fifty-five".