118490640 has 40 divisors (see below), whose sum is σ = 367321728. Its totient is φ = 31597440.

The previous prime is 118490627. The next prime is 118490657. The reversal of 118490640 is 46094811.

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

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 7 ways as a sum of consecutive naturals, for example, 246616 + ... + 247095.

Almost surely, 2^118490640 is an apocalyptic number.

118490640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118490640 is an abundant number, since it is smaller than the sum of its proper divisors (248831088).

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

118490640 is a wasteful number, since it uses less digits than its factorization.

118490640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493727 (or 493721 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 118490640 is about 10885.3406010101. The cubic root of 118490640 is about 491.1656822958.

The spelling of 118490640 in words is "one hundred eighteen million, four hundred ninety thousand, six hundred forty".