118453440 has 112 divisors (see below), whose sum is σ = 429841152. Its totient is φ = 27073536.

The previous prime is 118453421. The next prime is 118453451. The reversal of 118453440 is 44354811.

118453440 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 118453398 and 118453407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2094 + ... + 15533.

Almost surely, 2^118453440 is an apocalyptic number.

118453440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118453440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214920576).

118453440 is an abundant number, since it is smaller than the sum of its proper divisors (311387712).

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

118453440 is a wasteful number, since it uses less digits than its factorization.

118453440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17654 (or 17644 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 118453440 is about 10883.6317468022. The cubic root of 118453440 is about 491.1142766157.

The spelling of 118453440 in words is "one hundred eighteen million, four hundred fifty-three thousand, four hundred forty".