1297842 has 32 divisors (see below), whose sum is σ = 3196032. Its totient is φ = 342144.

The previous prime is 1297841. The next prime is 1297847. The reversal of 1297842 is 2487921.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1297841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643 + ... + 1734.

It is an arithmetic number, because the mean of its divisors is an integer number (99876).

2^1297842 is an apocalyptic number.

1297842 is an abundant number, since it is smaller than the sum of its proper divisors (1898190).

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

1297842 is a wasteful number, since it uses less digits than its factorization.

1297842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402.

The product of its digits is 8064, while the sum is 33.

The square root of 1297842 is about 1139.2286864366. The cubic root of 1297842 is about 109.0788644530.

The spelling of 1297842 in words is "one million, two hundred ninety-seven thousand, eight hundred forty-two".