194499140 has 24 divisors (see below), whose sum is σ = 445580352. Its totient is φ = 70726880.

The previous prime is 194499131. The next prime is 194499157. The reversal of 194499140 is 41994491.

It is a happy number.

194499140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441824 + ... + 442263.

It is an arithmetic number, because the mean of its divisors is an integer number (18565848).

Almost surely, 2^194499140 is an apocalyptic number.

194499140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194499140 is an abundant number, since it is smaller than the sum of its proper divisors (251081212).

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

194499140 is a wasteful number, since it uses less digits than its factorization.

194499140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884107 (or 884105 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 194499140 is about 13946.2948484535. The cubic root of 194499140 is about 579.3920899719.

The spelling of 194499140 in words is "one hundred ninety-four million, four hundred ninety-nine thousand, one hundred forty".