22140785 has 8 divisors (see below), whose sum is σ = 26609856. Its totient is φ = 17685360.

The previous prime is 22140773. The next prime is 22140787. The reversal of 22140785 is 58704122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22140785 - 2²⁴ = 5363569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22140787) 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, 590 + ... + 6680.

It is an arithmetic number, because the mean of its divisors is an integer number (3326232).

Almost surely, 2^22140785 is an apocalyptic number.

It is an amenable number.

22140785 is a deficient number, since it is larger than the sum of its proper divisors (4469071).

22140785 is an equidigital number, since it uses as much as digits as its factorization.

22140785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6823.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 22140785 is about 4705.3995579547. The cubic root of 22140785 is about 280.8003673193.

The spelling of 22140785 in words is "twenty-two million, one hundred forty thousand, seven hundred eighty-five".