1243674 has 28 divisors (see below), whose sum is σ = 2800266. Its totient is φ = 414072.

The previous prime is 1243673. The next prime is 1243691. The reversal of 1243674 is 4763421.

It can be written as a sum of positive squares in only one way, i.e., 1225449 + 18225 = 1107^2 + 135^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1243673) 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 13 ways as a sum of consecutive naturals, for example, 1032 + ... + 1884.

2^1243674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400133).

1243674 is an abundant number, since it is smaller than the sum of its proper divisors (1556592).

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

1243674 is an frugal number, since it uses more digits than its factorization.

1243674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 858 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 1243674 is about 1115.2013271154. The cubic root of 1243674 is about 107.5397077037.

The spelling of 1243674 in words is "one million, two hundred forty-three thousand, six hundred seventy-four".