64466442 has 24 divisors (see below), whose sum is σ = 144851616. Its totient is φ = 21488652.

The previous prime is 64466429. The next prime is 64466443. The reversal of 64466442 is 24466446.

It is a happy number.

64466442 is a `hidden beast` number, since 6 + 4 + 4 + 6 + 644 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 64466397 and 64466406.

It is not an unprimeable number, because it can be changed into a prime (64466443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65838 + ... + 66809.

It is an arithmetic number, because the mean of its divisors is an integer number (6035484).

Almost surely, 2^64466442 is an apocalyptic number.

64466442 is an abundant number, since it is smaller than the sum of its proper divisors (80385174).

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

64466442 is a wasteful number, since it uses less digits than its factorization.

64466442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132664 (or 132652 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The square root of 64466442 is about 8029.0997004646. The cubic root of 64466442 is about 400.9694029138.

The spelling of 64466442 in words is "sixty-four million, four hundred sixty-six thousand, four hundred forty-two".