64480278 has 8 divisors (see below), whose sum is σ = 128960568. Its totient is φ = 21493424.

The previous prime is 64480237. The next prime is 64480289. The reversal of 64480278 is 87208446.

It is a sphenic number, since it is the product of 3 distinct primes.

64480278 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5373351 + ... + 5373362.

It is an arithmetic number, because the mean of its divisors is an integer number (16120071).

Almost surely, 2^64480278 is an apocalyptic number.

64480278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64480278 is a wasteful number, since it uses less digits than its factorization.

64480278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10746718.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 64480278 is about 8029.9612701432. The cubic root of 64480278 is about 400.9980866529.

The spelling of 64480278 in words is "sixty-four million, four hundred eighty thousand, two hundred seventy-eight".