64244345 has 12 divisors (see below), whose sum is σ = 84739620. Its totient is φ = 46722720.

The previous prime is 64244281. The next prime is 64244351. The reversal of 64244345 is 54344246.

It can be written as a sum of positive squares in 2 ways, for example, as 20539024 + 43705321 = 4532^2 + 6611^2 .

It is not a de Polignac number, because 64244345 - 2⁶ = 64244281 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52490 + ... + 53699.

It is an arithmetic number, because the mean of its divisors is an integer number (7061635).

Almost surely, 2^64244345 is an apocalyptic number.

It is an amenable number.

64244345 is a deficient number, since it is larger than the sum of its proper divisors (20495275).

64244345 is a wasteful number, since it uses less digits than its factorization.

64244345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106216 (or 106205 counting only the distinct ones).

The product of its digits is 46080, while the sum is 32.

The square root of 64244345 is about 8015.2570139703. The cubic root of 64244345 is about 400.5084056189.

Subtracting from 64244345 its reverse (54344246), we obtain a palindrome (9900099).

The spelling of 64244345 in words is "sixty-four million, two hundred forty-four thousand, three hundred forty-five".