22064464 has 10 divisors (see below), whose sum is σ = 42749930. Its totient is φ = 11032224.

The previous prime is 22064459. The next prime is 22064473. The reversal of 22064464 is 46446022.

It can be written as a sum of positive squares in only one way, i.e., 20322064 + 1742400 = 4508^2 + 1320^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689499 + ... + 689530.

It is an arithmetic number, because the mean of its divisors is an integer number (4274993).

Almost surely, 2^22064464 is an apocalyptic number.

It is an amenable number.

22064464 is a deficient number, since it is larger than the sum of its proper divisors (20685466).

22064464 is a wasteful number, since it uses less digits than its factorization.

22064464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379037 (or 1379031 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 22064464 is about 4697.2826187063. The cubic root of 22064464 is about 280.4773490097.

It can be divided in two parts, 2206 and 4464, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 22064464 in words is "twenty-two million, sixty-four thousand, four hundred sixty-four".