64466272 has 48 divisors (see below), whose sum is σ = 137380320. Its totient is φ = 29601792.

The previous prime is 64466251. The next prime is 64466287. The reversal of 64466272 is 27266446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146629 + ... + 147067.

It is an arithmetic number, because the mean of its divisors is an integer number (2862090).

Almost surely, 2^64466272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64466272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68690160).

64466272 is an abundant number, since it is smaller than the sum of its proper divisors (72914048).

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

64466272 is a wasteful number, since it uses less digits than its factorization.

64466272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 807 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 64466272 is about 8029.0891139655. The cubic root of 64466272 is about 400.9690504572.

The spelling of 64466272 in words is "sixty-four million, four hundred sixty-six thousand, two hundred seventy-two".