194941640 has 32 divisors (see below), whose sum is σ = 452770560. Its totient is φ = 75460800.

The previous prime is 194941639. The next prime is 194941651. The reversal of 194941640 is 46149491.

194941640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 194941594 and 194941603.

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, 77366 + ... + 79845.

It is an arithmetic number, because the mean of its divisors is an integer number (14149080).

Almost surely, 2^194941640 is an apocalyptic number.

194941640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194941640 is an abundant number, since it is smaller than the sum of its proper divisors (257828920).

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

194941640 is a wasteful number, since it uses less digits than its factorization.

194941640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157253 (or 157249 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 194941640 is about 13962.1502641964. The cubic root of 194941640 is about 579.8311438697.

The spelling of 194941640 in words is "one hundred ninety-four million, nine hundred forty-one thousand, six hundred forty".