118653440 has 40 divisors (see below), whose sum is σ = 284496300. Its totient is φ = 47460352.

The previous prime is 118653361. The next prime is 118653443. The reversal of 118653440 is 44356811.

It can be written as a sum of positive squares in 2 ways, for example, as 111851776 + 6801664 = 10576^2 + 2608^2 .

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 (32).

It is a junction number, because it is equal to n+sod(n) for n = 118653397 and 118653406.

It is not an unprimeable number, because it can be changed into a prime (118653443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20615 + ... + 25734.

Almost surely, 2^118653440 is an apocalyptic number.

118653440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118653440 is an abundant number, since it is smaller than the sum of its proper divisors (165842860).

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

118653440 is an frugal number, since it uses more digits than its factorization.

118653440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46372 (or 46356 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 118653440 is about 10892.8159811869. The cubic root of 118653440 is about 491.3905247529.

The spelling of 118653440 in words is "one hundred eighteen million, six hundred fifty-three thousand, four hundred forty".