118493040 has 40 divisors (see below), whose sum is σ = 367329168. Its totient is φ = 31598080.

The previous prime is 118493029. The next prime is 118493047. The reversal of 118493040 is 40394811.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 118492989 and 118493007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118493047) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 246621 + ... + 247100.

Almost surely, 2^118493040 is an apocalyptic number.

118493040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118493040 is an abundant number, since it is smaller than the sum of its proper divisors (248836128).

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

118493040 is a wasteful number, since it uses less digits than its factorization.

118493040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493737 (or 493731 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 118493040 is about 10885.4508404567. The cubic root of 118493040 is about 491.1689984218.

The spelling of 118493040 in words is "one hundred eighteen million, four hundred ninety-three thousand, forty".