1113408 has 42 divisors (see below), whose sum is σ = 3193034. Its totient is φ = 370944.

The previous prime is 1113403. The next prime is 1113421. The reversal of 1113408 is 8043111.

It can be written as a sum of positive squares in only one way, i.e., 1016064 + 97344 = 1008^2 + 312^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 391 + ... + 1542.

2^1113408 is an apocalyptic number.

1113408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1113408 is an abundant number, since it is smaller than the sum of its proper divisors (2079626).

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

1113408 is a wasteful number, since it uses less digits than its factorization.

1113408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1113408 is about 1055.1815009751. The cubic root of 1113408 is about 103.6457374212.

Adding to 1113408 its reverse (8043111), we get a palindrome (9156519).

It can be divided in two parts, 1113 and 408, that added together give a square (1521 = 39²).

The spelling of 1113408 in words is "one million, one hundred thirteen thousand, four hundred eight".