1248816 has 20 divisors (see below), whose sum is σ = 3226232. Its totient is φ = 416256.

The previous prime is 1248809. The next prime is 1248829. The reversal of 1248816 is 6188421.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12961 + ... + 13056.

2^1248816 is an apocalyptic number.

1248816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1248816 is an abundant number, since it is smaller than the sum of its proper divisors (1977416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1248816 is a wasteful number, since it uses less digits than its factorization.

1248816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26028 (or 26022 counting only the distinct ones).

The product of its digits is 3072, while the sum is 30.

The square root of 1248816 is about 1117.5043624076. The cubic root of 1248816 is about 107.6877124151.

It can be divided in two parts, 12 and 48816, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 1248816 in words is "one million, two hundred forty-eight thousand, eight hundred sixteen".