64330390 has 16 divisors (see below), whose sum is σ = 121889520. Its totient is φ = 24377760.

The previous prime is 64330369. The next prime is 64330391. The reversal of 64330390 is 9303346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64330391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169101 + ... + 169480.

It is an arithmetic number, because the mean of its divisors is an integer number (7618095).

Almost surely, 2^64330390 is an apocalyptic number.

64330390 is a deficient number, since it is larger than the sum of its proper divisors (57559130).

64330390 is a wasteful number, since it uses less digits than its factorization.

64330390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338607.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 64330390 is about 8020.6227937736. The cubic root of 64330390 is about 400.6871314500.

The spelling of 64330390 in words is "sixty-four million, three hundred thirty thousand, three hundred ninety".