194693040 has 60 divisors (see below), whose sum is σ = 653846544. Its totient is φ = 51917952.

The previous prime is 194693033. The next prime is 194693041. The reversal of 194693040 is 40396491.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 194692986 and 194693004.

It is not an unprimeable number, because it can be changed into a prime (194693041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134484 + ... + 135923.

Almost surely, 2^194693040 is an apocalyptic number.

194693040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194693040 is an abundant number, since it is smaller than the sum of its proper divisors (459153504).

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

194693040 is a wasteful number, since it uses less digits than its factorization.

194693040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270426 (or 270417 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 194693040 is about 13953.2447839203. The cubic root of 194693040 is about 579.5845617985.

The spelling of 194693040 in words is "one hundred ninety-four million, six hundred ninety-three thousand, forty".