22421064 has 32 divisors (see below), whose sum is σ = 59004000. Its totient is φ = 7080192.

The previous prime is 22421053. The next prime is 22421107. The reversal of 22421064 is 46012422.

It is a super-2 number, since 2×22421064² = 1005408221784192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22421064.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 24129 + ... + 25040.

It is an arithmetic number, because the mean of its divisors is an integer number (1843875).

Almost surely, 2^22421064 is an apocalyptic number.

22421064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22421064 is an abundant number, since it is smaller than the sum of its proper divisors (36582936).

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

22421064 is a wasteful number, since it uses less digits than its factorization.

22421064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49197 (or 49193 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 22421064 is about 4735.0885947361. The cubic root of 22421064 is about 281.9802813032.

Adding to 22421064 its reverse (46012422), we get a palindrome (68433486).

The spelling of 22421064 in words is "twenty-two million, four hundred twenty-one thousand, sixty-four".