22067645 has 16 divisors (see below), whose sum is σ = 28080000. Its totient is φ = 16602048.

The previous prime is 22067641. The next prime is 22067671. The reversal of 22067645 is 54676022.

It is not a de Polignac number, because 22067645 - 2² = 22067641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22067641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13376 + ... + 14934.

It is an arithmetic number, because the mean of its divisors is an integer number (1755000).

Almost surely, 2^22067645 is an apocalyptic number.

It is an amenable number.

22067645 is a deficient number, since it is larger than the sum of its proper divisors (6012355).

22067645 is a wasteful number, since it uses less digits than its factorization.

22067645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 22067645 is about 4697.6212065257. The cubic root of 22067645 is about 280.4908270254.

The spelling of 22067645 in words is "twenty-two million, sixty-seven thousand, six hundred forty-five".