22001064 has 32 divisors (see below), whose sum is σ = 57395520. Its totient is φ = 7014656.

The previous prime is 22001047. The next prime is 22001071. The reversal of 22001064 is 46010022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19377 + ... + 20480.

It is an arithmetic number, because the mean of its divisors is an integer number (1793610).

Almost surely, 2^22001064 is an apocalyptic number.

22001064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22001064 is an abundant number, since it is smaller than the sum of its proper divisors (35394456).

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

22001064 is a wasteful number, since it uses less digits than its factorization.

22001064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39889 (or 39885 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 22001064 is about 4690.5291812332. The cubic root of 22001064 is about 280.2084502198.

Adding to 22001064 its reverse (46010022), we get a palindrome (68011086).

The spelling of 22001064 in words is "twenty-two million, one thousand, sixty-four".