64163244 has 24 divisors (see below), whose sum is σ = 149865408. Its totient is φ = 21366160.

The previous prime is 64163227. The next prime is 64163249. The reversal of 64163244 is 44236146.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (64163249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13639 + ... + 17729.

It is an arithmetic number, because the mean of its divisors is an integer number (6244392).

Almost surely, 2^64163244 is an apocalyptic number.

It is an amenable number.

64163244 is an abundant number, since it is smaller than the sum of its proper divisors (85702164).

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

64163244 is a wasteful number, since it uses less digits than its factorization.

64163244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5405 (or 5403 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 64163244 is about 8010.1962522775. The cubic root of 64163244 is about 400.3398029199.

The spelling of 64163244 in words is "sixty-four million, one hundred sixty-three thousand, two hundred forty-four".