1249838 has 8 divisors (see below), whose sum is σ = 1918488. Its totient is φ = 610344.

The previous prime is 1249837. The next prime is 1249841. The reversal of 1249838 is 8389421.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1249798 and 1249807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7181 + ... + 7352.

It is an arithmetic number, because the mean of its divisors is an integer number (239811).

2^1249838 is an apocalyptic number.

1249838 is a deficient number, since it is larger than the sum of its proper divisors (668650).

1249838 is a wasteful number, since it uses less digits than its factorization.

1249838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14578.

The product of its digits is 13824, while the sum is 35.

The square root of 1249838 is about 1117.9615377999. The cubic root of 1249838 is about 107.7170807216.

The spelling of 1249838 in words is "one million, two hundred forty-nine thousand, eight hundred thirty-eight".