1297388 has 24 divisors (see below), whose sum is σ = 2376192. Its totient is φ = 619344.

The previous prime is 1297369. The next prime is 1297393. The reversal of 1297388 is 8837921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12545 + ... + 12647.

It is an arithmetic number, because the mean of its divisors is an integer number (99008).

2^1297388 is an apocalyptic number.

It is an amenable number.

1297388 is a deficient number, since it is larger than the sum of its proper divisors (1078804).

1297388 is a wasteful number, since it uses less digits than its factorization.

1297388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 219 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 1297388 is about 1139.0294113850. The cubic root of 1297388 is about 109.0661439575.

The spelling of 1297388 in words is "one million, two hundred ninety-seven thousand, three hundred eighty-eight".