1278884 has 12 divisors (see below), whose sum is σ = 2276400. Its totient is φ = 628488.

The previous prime is 1278881. The next prime is 1278899. The reversal of 1278884 is 4888721.

It is a happy number.

It is a super-3 number, since 3×1278884³ = 6275014253883333312, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1278881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2474 + ... + 2945.

It is an arithmetic number, because the mean of its divisors is an integer number (189700).

2^1278884 is an apocalyptic number.

It is an amenable number.

1278884 is a deficient number, since it is larger than the sum of its proper divisors (997516).

1278884 is a wasteful number, since it uses less digits than its factorization.

1278884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5482 (or 5480 counting only the distinct ones).

The product of its digits is 28672, while the sum is 38.

The square root of 1278884 is about 1130.8775353680. The cubic root of 1278884 is about 108.5451403839.

The spelling of 1278884 in words is "one million, two hundred seventy-eight thousand, eight hundred eighty-four".