1278212 has 24 divisors (see below), whose sum is σ = 2464896. Its totient is φ = 576288.

The previous prime is 1278209. The next prime is 1278217. The reversal of 1278212 is 2128721.

It is not an unprimeable number, because it can be changed into a prime (1278217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2183 + ... + 2705.

It is an arithmetic number, because the mean of its divisors is an integer number (102704).

2^1278212 is an apocalyptic number.

It is an amenable number.

1278212 is a deficient number, since it is larger than the sum of its proper divisors (1186684).

1278212 is a wasteful number, since it uses less digits than its factorization.

1278212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587 (or 585 counting only the distinct ones).

The product of its digits is 448, while the sum is 23.

The square root of 1278212 is about 1130.5803819278. The cubic root of 1278212 is about 108.5261250773.

The spelling of 1278212 in words is "one million, two hundred seventy-eight thousand, two hundred twelve".