1338628 has 12 divisors (see below), whose sum is σ = 2351440. Its totient is φ = 666792.

The previous prime is 1338587. The next prime is 1338637. The reversal of 1338628 is 8268331.

It is a self number, because there is not a number n which added to its sum of digits gives 1338628.

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, 1075 + ... + 1957.

2^1338628 is an apocalyptic number.

It is an amenable number.

1338628 is a deficient number, since it is larger than the sum of its proper divisors (1012812).

1338628 is a wasteful number, since it uses less digits than its factorization.

1338628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266 (or 1264 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 1338628 is about 1156.9909247699. The cubic root of 1338628 is about 110.2097375791.

Subtracting from 1338628 its product of digits (6912), we obtain a square (1331716 = 1154²).

The spelling of 1338628 in words is "one million, three hundred thirty-eight thousand, six hundred twenty-eight".