1274649 has 16 divisors (see below), whose sum is σ = 1788864. Its totient is φ = 806400.

The previous prime is 1274633. The next prime is 1274671. The reversal of 1274649 is 9464721.

It is a happy number.

It is not a de Polignac number, because 1274649 - 2⁴ = 1274633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1274629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5169 + ... + 5409.

It is an arithmetic number, because the mean of its divisors is an integer number (111804).

2^1274649 is an apocalyptic number.

It is an amenable number.

1274649 is a deficient number, since it is larger than the sum of its proper divisors (514215).

1274649 is a wasteful number, since it uses less digits than its factorization.

1274649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328.

The product of its digits is 12096, while the sum is 33.

The square root of 1274649 is about 1129.0035429528. The cubic root of 1274649 is about 108.4251928301.

The spelling of 1274649 in words is "one million, two hundred seventy-four thousand, six hundred forty-nine".