64224356 has 12 divisors (see below), whose sum is σ = 128448768. Its totient is φ = 27524712.

The previous prime is 64224301. The next prime is 64224361. The reversal of 64224356 is 65342246.

64224356 is an admirable number.

It is a super-2 number, since 2×64224356² = 8249535807229472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1146836 + ... + 1146891.

It is an arithmetic number, because the mean of its divisors is an integer number (10704064).

Almost surely, 2^64224356 is an apocalyptic number.

It is an amenable number.

64224356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64224356 is a wasteful number, since it uses less digits than its factorization.

64224356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293738 (or 2293736 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

The square root of 64224356 is about 8014.0099825244. The cubic root of 64224356 is about 400.4668632182.

The spelling of 64224356 in words is "sixty-four million, two hundred twenty-four thousand, three hundred fifty-six".