22740769 has 4 divisors (see below), whose sum is σ = 22778244. Its totient is φ = 22703296.

The previous prime is 22740761. The next prime is 22740787. The reversal of 22740769 is 96704722.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5832225 + 16908544 = 2415^2 + 4112^2 .

It is a cyclic number.

It is not a de Polignac number, because 22740769 - 2³ = 22740761 is a prime.

It is a super-2 number, since 2×22740769² = 1034285149422722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22740761) 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, 17812 + ... + 19045.

It is an arithmetic number, because the mean of its divisors is an integer number (5694561).

Almost surely, 2^22740769 is an apocalyptic number.

It is an amenable number.

22740769 is a deficient number, since it is larger than the sum of its proper divisors (37475).

22740769 is an equidigital number, since it uses as much as digits as its factorization.

22740769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37474.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 22740769 is about 4768.7282371718. The cubic root of 22740769 is about 283.3142260087.

The spelling of 22740769 in words is "twenty-two million, seven hundred forty thousand, seven hundred sixty-nine".