1294656 has 56 divisors (see below), whose sum is σ = 3742944. Its totient is φ = 391680.

The previous prime is 1294651. The next prime is 1294691. The reversal of 1294656 is 6564921.

It is a super-2 number, since 2×1294656² = 3352268316672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1294651) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1806 + ... + 2418.

2^1294656 is an apocalyptic number.

1294656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1294656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871472).

1294656 is an abundant number, since it is smaller than the sum of its proper divisors (2448288).

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

1294656 is a wasteful number, since it uses less digits than its factorization.

1294656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 629 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 1294656 is about 1137.8295127127. The cubic root of 1294656 is about 108.9895341072.

The spelling of 1294656 in words is "one million, two hundred ninety-four thousand, six hundred fifty-six".