64061244 has 36 divisors (see below), whose sum is σ = 174390216. Its totient is φ = 19711008.

The previous prime is 64061243. The next prime is 64061251. The reversal of 64061244 is 44216046.

64061244 is a `hidden beast` number, since 6 + 4 + 0 + 612 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64061243) by changing a digit.

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, 67974 + ... + 68909.

Almost surely, 2^64061244 is an apocalyptic number.

It is an amenable number.

64061244 is an abundant number, since it is smaller than the sum of its proper divisors (110328972).

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

64061244 is a wasteful number, since it uses less digits than its factorization.

64061244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136906 (or 136901 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 64061244 is about 8003.8268347085. The cubic root of 64061244 is about 400.1275509892.

The spelling of 64061244 in words is "sixty-four million, sixty-one thousand, two hundred forty-four".