1249646 has 8 divisors (see below), whose sum is σ = 1905384. Its totient is φ = 614520.

The previous prime is 1249643. The next prime is 1249657. The reversal of 1249646 is 6469421.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249643) 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, 5000 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (238173).

2^1249646 is an apocalyptic number.

1249646 is a deficient number, since it is larger than the sum of its proper divisors (655738).

1249646 is a wasteful number, since it uses less digits than its factorization.

1249646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10306.

The product of its digits is 10368, while the sum is 32.

The square root of 1249646 is about 1117.8756639269. The cubic root of 1249646 is about 107.7115646098.

The spelling of 1249646 in words is "one million, two hundred forty-nine thousand, six hundred forty-six".