194857040 has 40 divisors (see below), whose sum is σ = 517764480. Its totient is φ = 66807936.

The previous prime is 194856983. The next prime is 194857079. The reversal of 194857040 is 40758491.

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

It is a junction number, because it is equal to n+sod(n) for n = 194856985 and 194857003.

It is a congruent number.

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, 173420 + ... + 174539.

It is an arithmetic number, because the mean of its divisors is an integer number (12944112).

Almost surely, 2^194857040 is an apocalyptic number.

194857040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194857040 is an abundant number, since it is smaller than the sum of its proper divisors (322907440).

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

194857040 is a wasteful number, since it uses less digits than its factorization.

194857040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347979 (or 347973 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 194857040 is about 13959.1203161231. The cubic root of 194857040 is about 579.7472541262.

The spelling of 194857040 in words is "one hundred ninety-four million, eight hundred fifty-seven thousand, forty".