10278564 has 12 divisors (see below), whose sum is σ = 23983344. Its totient is φ = 3426184.

The previous prime is 10278553. The next prime is 10278613. The reversal of 10278564 is 46587201.

10278564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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, 428262 + ... + 428285.

It is an arithmetic number, because the mean of its divisors is an integer number (1998612).

Almost surely, 2^10278564 is an apocalyptic number.

It is an amenable number.

10278564 is an abundant number, since it is smaller than the sum of its proper divisors (13704780).

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

10278564 is a wasteful number, since it uses less digits than its factorization.

10278564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856554 (or 856552 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 10278564 is about 3206.0199625080. The cubic root of 10278564 is about 217.4256688794.

It can be divided in two parts, 1027 and 8564, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 10278564 in words is "ten million, two hundred seventy-eight thousand, five hundred sixty-four".