64442283 has 16 divisors (see below), whose sum is σ = 89236896. Its totient is φ = 41333760.

The previous prime is 64442269. The next prime is 64442293. The reversal of 64442283 is 38224446.

It is not a de Polignac number, because 64442283 - 2⁴ = 64442267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64442293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5391 + ... + 12567.

It is an arithmetic number, because the mean of its divisors is an integer number (5577306).

Almost surely, 2^64442283 is an apocalyptic number.

64442283 is a deficient number, since it is larger than the sum of its proper divisors (24794613).

64442283 is a wasteful number, since it uses less digits than its factorization.

64442283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7294.

The product of its digits is 36864, while the sum is 33.

The square root of 64442283 is about 8027.5950944227. The cubic root of 64442283 is about 400.9193084779.

The spelling of 64442283 in words is "sixty-four million, four hundred forty-two thousand, two hundred eighty-three".