1229616 has 30 divisors (see below), whose sum is σ = 3441620. Its totient is φ = 409824.

The previous prime is 1229597. The next prime is 1229617. The reversal of 1229616 is 6169221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1229616.

It is not an unprimeable number, because it can be changed into a prime (1229617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4126 + ... + 4413.

2^1229616 is an apocalyptic number.

1229616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1229616 is an abundant number, since it is smaller than the sum of its proper divisors (2212004).

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

1229616 is a wasteful number, since it uses less digits than its factorization.

1229616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8553 (or 8544 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1229616 is about 1108.8805165571. The cubic root of 1229616 is about 107.1329758506.

The spelling of 1229616 in words is "one million, two hundred twenty-nine thousand, six hundred sixteen".