64224918 has 12 divisors (see below), whose sum is σ = 139154028. Its totient is φ = 21408300.

The previous prime is 64224917. The next prime is 64224949. The reversal of 64224918 is 81942246.

64224918 is a `hidden beast` number, since 642 + 2 + 4 + 9 + 1 + 8 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64224913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1784008 + ... + 1784043.

It is an arithmetic number, because the mean of its divisors is an integer number (11596169).

Almost surely, 2^64224918 is an apocalyptic number.

64224918 is an abundant number, since it is smaller than the sum of its proper divisors (74929110).

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

64224918 is a wasteful number, since it uses less digits than its factorization.

64224918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568059 (or 3568056 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 64224918 is about 8014.0450460426. The cubic root of 64224918 is about 400.4680313198.

The spelling of 64224918 in words is "sixty-four million, two hundred twenty-four thousand, nine hundred eighteen".