118263390 has 128 divisors (see below), whose sum is σ = 347286528. Its totient is φ = 25159680.

The previous prime is 118263389. The next prime is 118263403. The reversal of 118263390 is 93362811.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 560385 + ... + 560595.

It is an arithmetic number, because the mean of its divisors is an integer number (2713176).

Almost surely, 2^118263390 is an apocalyptic number.

118263390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 118263390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173643264).

118263390 is an abundant number, since it is smaller than the sum of its proper divisors (229023138).

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

118263390 is a wasteful number, since it uses less digits than its factorization.

118263390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 118263390 is about 10874.8972408938. The cubic root of 118263390 is about 490.8514835444.

The spelling of 118263390 in words is "one hundred eighteen million, two hundred sixty-three thousand, three hundred ninety".