10278864 has 60 divisors (see below), whose sum is σ = 29485092. Its totient is φ = 3340800.

The previous prime is 10278841. The next prime is 10278881. The reversal of 10278864 is 46887201.

It can be written as a sum of positive squares in 2 ways, for example, as 166464 + 10112400 = 408^2 + 3180^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5034 + ... + 6774.

Almost surely, 2^10278864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10278864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14742546).

10278864 is an abundant number, since it is smaller than the sum of its proper divisors (19206228).

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

10278864 is a wasteful number, since it uses less digits than its factorization.

10278864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 10278864 is about 3206.0667491492. The cubic root of 10278864 is about 217.4277841900.

The spelling of 10278864 in words is "ten million, two hundred seventy-eight thousand, eight hundred sixty-four".