1261842 has 32 divisors (see below), whose sum is σ = 2721600. Its totient is φ = 388608.

The previous prime is 1261837. The next prime is 1261861. The reversal of 1261842 is 2481621.

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 15 ways as a sum of consecutive naturals, for example, 9009 + ... + 9147.

It is an arithmetic number, because the mean of its divisors is an integer number (85050).

2^1261842 is an apocalyptic number.

1261842 is an abundant number, since it is smaller than the sum of its proper divisors (1459758).

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

1261842 is a wasteful number, since it uses less digits than its factorization.

1261842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250.

The product of its digits is 768, while the sum is 24.

The square root of 1261842 is about 1123.3174083935. The cubic root of 1261842 is about 108.0608367802.

The spelling of 1261842 in words is "one million, two hundred sixty-one thousand, eight hundred forty-two".