1239628 has 24 divisors (see below), whose sum is σ = 2414720. Its totient is φ = 552960.

The previous prime is 1239619. The next prime is 1239643. The reversal of 1239628 is 8269321.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 1239628.

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, 1228 + ... + 1996.

2^1239628 is an apocalyptic number.

It is an amenable number.

1239628 is a deficient number, since it is larger than the sum of its proper divisors (1175092).

1239628 is a wasteful number, since it uses less digits than its factorization.

1239628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 815 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 1239628 is about 1113.3858271058. The cubic root of 1239628 is about 107.4229626537.

The spelling of 1239628 in words is "one million, two hundred thirty-nine thousand, six hundred twenty-eight".