64662246 has 64 divisors (see below), whose sum is σ = 163607040. Its totient is φ = 18738720.

The previous prime is 64662209. The next prime is 64662251. The reversal of 64662246 is 64226646.

64662246 is a `hidden beast` number, since 646 + 6 + 2 + 2 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 64662246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11296 + ... + 16028.

It is an arithmetic number, because the mean of its divisors is an integer number (2556360).

Almost surely, 2^64662246 is an apocalyptic number.

64662246 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 64662246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81803520).

64662246 is an abundant number, since it is smaller than the sum of its proper divisors (98944794).

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

64662246 is a wasteful number, since it uses less digits than its factorization.

64662246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778 (or 4772 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 64662246 is about 8041.2838527190. The cubic root of 64662246 is about 401.3749475495.

Subtracting from 64662246 its reverse (64226646), we obtain a square (435600 = 660²).

The spelling of 64662246 in words is "sixty-four million, six hundred sixty-two thousand, two hundred forty-six".