1249798 has 8 divisors (see below), whose sum is σ = 2045160. Its totient is φ = 568080.

The previous prime is 1249757. The next prime is 1249799. The reversal of 1249798 is 8979421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1249798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249799) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28383 + ... + 28426.

It is an arithmetic number, because the mean of its divisors is an integer number (255645).

2^1249798 is an apocalyptic number.

1249798 is a deficient number, since it is larger than the sum of its proper divisors (795362).

1249798 is a wasteful number, since it uses less digits than its factorization.

1249798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56822.

The product of its digits is 36288, while the sum is 40.

The square root of 1249798 is about 1117.9436479537. The cubic root of 1249798 is about 107.7159315782.

The spelling of 1249798 in words is "one million, two hundred forty-nine thousand, seven hundred ninety-eight".