22992749 has 4 divisors (see below), whose sum is σ = 24761436. Its totient is φ = 21224064.

The previous prime is 22992707. The next prime is 22992757. The reversal of 22992749 is 94729922.

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 14478025 + 8514724 = 3805^2 + 2918^2 .

It is a cyclic number.

It is not a de Polignac number, because 22992749 - 2¹² = 22988653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22992779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884324 + ... + 884349.

It is an arithmetic number, because the mean of its divisors is an integer number (6190359).

Almost surely, 2^22992749 is an apocalyptic number.

It is an amenable number.

22992749 is a deficient number, since it is larger than the sum of its proper divisors (1768687).

22992749 is a wasteful number, since it uses less digits than its factorization.

22992749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768686.

The product of its digits is 163296, while the sum is 44.

The square root of 22992749 is about 4795.0754947133. The cubic root of 22992749 is about 284.3568095115.

The spelling of 22992749 in words is "twenty-two million, nine hundred ninety-two thousand, seven hundred forty-nine".