22750740 has 48 divisors (see below), whose sum is σ = 70781760. Its totient is φ = 6066720.

The previous prime is 22750729. The next prime is 22750747. The reversal of 22750740 is 4705722.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22750747) 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 15 ways as a sum of consecutive naturals, for example, 20526 + ... + 21605.

It is an arithmetic number, because the mean of its divisors is an integer number (1474620).

Almost surely, 2^22750740 is an apocalyptic number.

22750740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22750740 is an abundant number, since it is smaller than the sum of its proper divisors (48031020).

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

22750740 is a wasteful number, since it uses less digits than its factorization.

22750740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42149 (or 42141 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 22750740 is about 4769.7735795318. The cubic root of 22750740 is about 283.3556276190.

The spelling of 22750740 in words is "twenty-two million, seven hundred fifty thousand, seven hundred forty".