1128408 has 16 divisors (see below), whose sum is σ = 2821080. Its totient is φ = 376128.

The previous prime is 1128397. The next prime is 1128427. The reversal of 1128408 is 8048211.

It is a super-2 number, since 2×1128408² = 2546609228928, which contains 22 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 47017 = 1128408 / (1 + 1 + 2 + 8 + 4 + 0 + 8).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 23485 + ... + 23532.

2^1128408 is an apocalyptic number.

It is an amenable number.

1128408 is an abundant number, since it is smaller than the sum of its proper divisors (1692672).

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

1128408 is a wasteful number, since it uses less digits than its factorization.

1128408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47026 (or 47022 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1128408 is about 1062.2655035348. The cubic root of 1128408 is about 104.1091064037.

The spelling of 1128408 in words is "one million, one hundred twenty-eight thousand, four hundred eight".