22093749 has 8 divisors (see below), whose sum is σ = 32731520. Its totient is φ = 14729148.

The previous prime is 22093741. The next prime is 22093763. The reversal of 22093749 is 94739022.

It is not a de Polignac number, because 22093749 - 2³ = 22093741 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 (22093741) 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, 409117 + ... + 409170.

It is an arithmetic number, because the mean of its divisors is an integer number (4091440).

Almost surely, 2^22093749 is an apocalyptic number.

It is an amenable number.

22093749 is a deficient number, since it is larger than the sum of its proper divisors (10637771).

22093749 is an equidigital number, since it uses as much as digits as its factorization.

22093749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818296 (or 818290 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 22093749 is about 4700.3988128668. The cubic root of 22093749 is about 280.6013817521.

The spelling of 22093749 in words is "twenty-two million, ninety-three thousand, seven hundred forty-nine".