64330446 has 32 divisors (see below), whose sum is σ = 132619680. Its totient is φ = 20793344.

The previous prime is 64330429. The next prime is 64330481. The reversal of 64330446 is 64403346.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27166 + ... + 29438.

It is an arithmetic number, because the mean of its divisors is an integer number (4144365).

Almost surely, 2^64330446 is an apocalyptic number.

64330446 is an abundant number, since it is smaller than the sum of its proper divisors (68289234).

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

64330446 is a wasteful number, since it uses less digits than its factorization.

64330446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 64330446 is about 8020.6262847735. The cubic root of 64330446 is about 400.6872477169.

Subtracting 64330446 from its reverse (64403346), we obtain a square (72900 = 270²).

The spelling of 64330446 in words is "sixty-four million, three hundred thirty thousand, four hundred forty-six".