1229628 has 24 divisors (see below), whose sum is σ = 2937088. Its totient is φ = 400176.

The previous prime is 1229617. The next prime is 1229633. The reversal of 1229628 is 8269221.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1229595 and 1229604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676 + ... + 1707.

2^1229628 is an apocalyptic number.

It is an amenable number.

1229628 is an abundant number, since it is smaller than the sum of its proper divisors (1707460).

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

1229628 is a wasteful number, since it uses less digits than its factorization.

1229628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433 (or 2431 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 1229628 is about 1108.8859274064. The cubic root of 1229628 is about 107.1333243582.

The spelling of 1229628 in words is "one million, two hundred twenty-nine thousand, six hundred twenty-eight".