1282978 has 8 divisors (see below), whose sum is σ = 1930320. Its totient is φ = 639540.

The previous prime is 1282969. The next prime is 1282993. The reversal of 1282978 is 8792821.

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

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, 73 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (241290).

2^1282978 is an apocalyptic number.

1282978 is a deficient number, since it is larger than the sum of its proper divisors (647342).

1282978 is a wasteful number, since it uses less digits than its factorization.

1282978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952.

The product of its digits is 16128, while the sum is 37.

The square root of 1282978 is about 1132.6861877855. The cubic root of 1282978 is about 108.6608429430.

The spelling of 1282978 in words is "one million, two hundred eighty-two thousand, nine hundred seventy-eight".