1191408 has 20 divisors (see below), whose sum is σ = 3077928. Its totient is φ = 397120.

The previous prime is 1191373. The next prime is 1191409. The reversal of 1191408 is 8041911.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1191409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12363 + ... + 12458.

2^1191408 is an apocalyptic number.

It is an amenable number.

1191408 is an abundant number, since it is smaller than the sum of its proper divisors (1886520).

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

1191408 is a wasteful number, since it uses less digits than its factorization.

1191408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24832 (or 24826 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1191408 is about 1091.5163764232. The cubic root of 1191408 is about 106.0116280112.

It can be divided in two parts, 11 and 91408, that added together give a palindrome (91419).

The spelling of 1191408 in words is "one million, one hundred ninety-one thousand, four hundred eight".