118693840 has 40 divisors (see below), whose sum is σ = 280651680. Its totient is φ = 46670976.

The previous prime is 118693807. The next prime is 118693843. The reversal of 118693840 is 48396811.

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

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 118693793 and 118693802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118693843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7854 + ... + 17293.

It is an arithmetic number, because the mean of its divisors is an integer number (7016292).

Almost surely, 2^118693840 is an apocalyptic number.

118693840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118693840 is an abundant number, since it is smaller than the sum of its proper divisors (161957840).

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

118693840 is a wasteful number, since it uses less digits than its factorization.

118693840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25219 (or 25213 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 118693840 is about 10894.6702565979. The cubic root of 118693840 is about 491.4462891832.

The spelling of 118693840 in words is "one hundred eighteen million, six hundred ninety-three thousand, eight hundred forty".