1279264 has 24 divisors (see below), whose sum is σ = 2878848. Its totient is φ = 548160.

The previous prime is 1279253. The next prime is 1279303. The reversal of 1279264 is 4629721.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 2632 + ... + 3079.

It is an arithmetic number, because the mean of its divisors is an integer number (119952).

2^1279264 is an apocalyptic number.

1279264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1279264 is an abundant number, since it is smaller than the sum of its proper divisors (1599584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1279264 is an equidigital number, since it uses as much as digits as its factorization.

1279264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728 (or 5720 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 1279264 is about 1131.0455340082. The cubic root of 1279264 is about 108.5558901388. Note that the first 3 decimals are identical.

The spelling of 1279264 in words is "one million, two hundred seventy-nine thousand, two hundred sixty-four".