194903940 has 96 divisors (see below), whose sum is σ = 680408064. Its totient is φ = 40498560.

The previous prime is 194903939. The next prime is 194903977. The reversal of 194903940 is 49309491.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16474 + ... + 25713.

It is an arithmetic number, because the mean of its divisors is an integer number (7087584).

Almost surely, 2^194903940 is an apocalyptic number.

194903940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194903940 is an abundant number, since it is smaller than the sum of its proper divisors (485504124).

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

194903940 is a wasteful number, since it uses less digits than its factorization.

194903940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42217 (or 42215 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 194903940 is about 13960.8001203369. The cubic root of 194903940 is about 579.7937633773.

The spelling of 194903940 in words is "one hundred ninety-four million, nine hundred three thousand, nine hundred forty".