64280396 has 24 divisors (see below), whose sum is σ = 118001856. Its totient is φ = 30602880.

The previous prime is 64280393. The next prime is 64280407. The reversal of 64280396 is 69308246.

It is not an unprimeable number, because it can be changed into a prime (64280393) 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, 2336 + ... + 11576.

It is an arithmetic number, because the mean of its divisors is an integer number (4916744).

Almost surely, 2^64280396 is an apocalyptic number.

It is an amenable number.

64280396 is a deficient number, since it is larger than the sum of its proper divisors (53721460).

64280396 is a wasteful number, since it uses less digits than its factorization.

64280396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9329 (or 9327 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 64280396 is about 8017.5055971293. The cubic root of 64280396 is about 400.5833073013.

The spelling of 64280396 in words is "sixty-four million, two hundred eighty thousand, three hundred ninety-six".