194792240 has 20 divisors (see below), whose sum is σ = 452892144. Its totient is φ = 77916864.

The previous prime is 194792233. The next prime is 194792243. The reversal of 194792240 is 42297491.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 194792194 and 194792203.

It is not an unprimeable number, because it can be changed into a prime (194792243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217372 + ... + 1217531.

Almost surely, 2^194792240 is an apocalyptic number.

194792240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194792240 is an abundant number, since it is smaller than the sum of its proper divisors (258099904).

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

194792240 is a wasteful number, since it uses less digits than its factorization.

194792240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434916 (or 2434910 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 194792240 is about 13956.7990599564. The cubic root of 194792240 is about 579.6829817289.

The spelling of 194792240 in words is "one hundred ninety-four million, seven hundred ninety-two thousand, two hundred forty".