22383840 has 48 divisors (see below), whose sum is σ = 70510608. Its totient is φ = 5968896.

The previous prime is 22383821. The next prime is 22383841. The reversal of 22383840 is 4838322.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22383798 and 22383807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22383841) 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 7 ways as a sum of consecutive naturals, for example, 22837 + ... + 23796.

It is an arithmetic number, because the mean of its divisors is an integer number (1468971).

Almost surely, 2^22383840 is an apocalyptic number.

22383840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22383840 is an abundant number, since it is smaller than the sum of its proper divisors (48126768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22383840 is a wasteful number, since it uses less digits than its factorization.

22383840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46651 (or 46643 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 22383840 is about 4731.1563068662. The cubic root of 22383840 is about 281.8241446725.

The spelling of 22383840 in words is "twenty-two million, three hundred eighty-three thousand, eight hundred forty".