64449846 has 24 divisors (see below), whose sum is σ = 141728184. Its totient is φ = 21162240.

The previous prime is 64449823. The next prime is 64449857. The reversal of 64449846 is 64894446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25515 + ... + 27926.

It is an arithmetic number, because the mean of its divisors is an integer number (5905341).

Almost surely, 2^64449846 is an apocalyptic number.

64449846 is an abundant number, since it is smaller than the sum of its proper divisors (77278338).

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

64449846 is a wasteful number, since it uses less digits than its factorization.

64449846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53516 (or 53513 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 64449846 is about 8028.0661432253. The cubic root of 64449846 is about 400.9349919390.

It can be divided in two parts, 6444 and 9846, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 64449846 in words is "sixty-four million, four hundred forty-nine thousand, eight hundred forty-six".