64249782 has 24 divisors (see below), whose sum is σ = 130600824. Its totient is φ = 21068064.

The previous prime is 64249769. The next prime is 64249813. The reversal of 64249782 is 28794246.

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, 167563 + ... + 167945.

It is an arithmetic number, because the mean of its divisors is an integer number (5441701).

Almost surely, 2^64249782 is an apocalyptic number.

64249782 is an abundant number, since it is smaller than the sum of its proper divisors (66351042).

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

64249782 is an equidigital number, since it uses as much as digits as its factorization.

64249782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 461 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 64249782 is about 8015.5961724628. The cubic root of 64249782 is about 400.5197036445.

The spelling of 64249782 in words is "sixty-four million, two hundred forty-nine thousand, seven hundred eighty-two".