1249216 has 28 divisors (see below), whose sum is σ = 2514600. Its totient is φ = 615680.

The previous prime is 1249201. The next prime is 1249217. The reversal of 1249216 is 6129421.

It is a super-2 number, since 2×1249216² = 3121081229312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249217) 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, 8310 + ... + 8458.

2^1249216 is an apocalyptic number.

1249216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1249216 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1249216 is a wasteful number, since it uses less digits than its factorization.

1249216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 282 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 1249216 is about 1117.6833182973. The cubic root of 1249216 is about 107.6992087676.

The spelling of 1249216 in words is "one million, two hundred forty-nine thousand, two hundred sixteen".