1278352 has 20 divisors (see below), whose sum is σ = 2502940. Its totient is φ = 632448.

The previous prime is 1278341. The next prime is 1278371. The reversal of 1278352 is 2538721.

It can be written as a sum of positive squares in 2 ways, for example, as 1115136 + 163216 = 1056^2 + 404^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1278352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1378 + ... + 2110.

It is an arithmetic number, because the mean of its divisors is an integer number (125147).

2^1278352 is an apocalyptic number.

It is an amenable number.

1278352 is a deficient number, since it is larger than the sum of its proper divisors (1224588).

1278352 is a wasteful number, since it uses less digits than its factorization.

1278352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 844 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 1278352 is about 1130.6422953348. The cubic root of 1278352 is about 108.5300871490.

The spelling of 1278352 in words is "one million, two hundred seventy-eight thousand, three hundred fifty-two".