1261744 has 40 divisors (see below), whose sum is σ = 2731968. Its totient is φ = 559680.

The previous prime is 1261739. The next prime is 1261747. The reversal of 1261744 is 4471621.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261747) 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, 11739 + ... + 11845.

2^1261744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1261744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365984).

1261744 is an abundant number, since it is smaller than the sum of its proper divisors (1470224).

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

1261744 is a wasteful number, since it uses less digits than its factorization.

1261744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 187 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 1261744 is about 1123.2737867501. The cubic root of 1261744 is about 108.0580392202.

The spelling of 1261744 in words is "one million, two hundred sixty-one thousand, seven hundred forty-four".