1244691 has 24 divisors (see below), whose sum is σ = 2146560. Its totient is φ = 679536.

The previous prime is 1244687. The next prime is 1244699. The reversal of 1244691 is 1964421.

It is not a de Polignac number, because 1244691 - 2² = 1244687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244699) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1020 + ... + 1878.

It is an arithmetic number, because the mean of its divisors is an integer number (89440).

2^1244691 is an apocalyptic number.

1244691 is a deficient number, since it is larger than the sum of its proper divisors (901869).

1244691 is a wasteful number, since it uses less digits than its factorization.

1244691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 892 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1244691 is about 1115.6572054175. The cubic root of 1244691 is about 107.5690128337.

The spelling of 1244691 in words is "one million, two hundred forty-four thousand, six hundred ninety-one".