118493280 has 240 divisors, whose sum is σ = 430303104. Its totient is φ = 30689280.

The previous prime is 118493267. The next prime is 118493341. The reversal of 118493280 is 82394811.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 531249 + ... + 531471.

Almost surely, 2^118493280 is an apocalyptic number.

118493280 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 118493280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215151552).

118493280 is an abundant number, since it is smaller than the sum of its proper divisors (311809824).

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

118493280 is a wasteful number, since it uses less digits than its factorization.

118493280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 118493280 is about 10885.4618643400. The cubic root of 118493280 is about 491.1693300320.

It can be divided in two parts, 11849 and 3280, that added together give a square (15129 = 123²).

The spelling of 118493280 in words is "one hundred eighteen million, four hundred ninety-three thousand, two hundred eighty".