22033649 has 24 divisors (see below), whose sum is σ = 26524800. Its totient is φ = 18126080.

The previous prime is 22033633. The next prime is 22033651. The reversal of 22033649 is 94633022.

It is not a de Polignac number, because 22033649 - 2⁴ = 22033633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22033619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92072 + ... + 92310.

It is an arithmetic number, because the mean of its divisors is an integer number (1105200).

Almost surely, 2^22033649 is an apocalyptic number.

22033649 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22033649 is a deficient number, since it is larger than the sum of its proper divisors (4491151).

22033649 is a wasteful number, since it uses less digits than its factorization.

22033649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 22033649 is about 4694.0013847463. The cubic root of 22033649 is about 280.3467175992.

The spelling of 22033649 in words is "twenty-two million, thirty-three thousand, six hundred forty-nine".