1228616 has 32 divisors (see below), whose sum is σ = 2484000. Its totient is φ = 567936.

The previous prime is 1228613. The next prime is 1228631. The reversal of 1228616 is 6168221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8900 + ... + 9036.

It is an arithmetic number, because the mean of its divisors is an integer number (77625).

2^1228616 is an apocalyptic number.

It is an amenable number.

1228616 is an abundant number, since it is smaller than the sum of its proper divisors (1255384).

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

1228616 is a wasteful number, since it uses less digits than its factorization.

1228616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 217 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 1228616 is about 1108.4295196358. The cubic root of 1228616 is about 107.1039255804.

The spelling of 1228616 in words is "one million, two hundred twenty-eight thousand, six hundred sixteen".