194929940 has 12 divisors (see below), whose sum is σ = 409352916. Its totient is φ = 77971968.

The previous prime is 194929937. The next prime is 194929961. The reversal of 194929940 is 49929491.

194929940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 127328656 + 67601284 = 11284^2 + 8222^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4873229 + ... + 4873268.

It is an arithmetic number, because the mean of its divisors is an integer number (34112743).

Almost surely, 2^194929940 is an apocalyptic number.

194929940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194929940 is an abundant number, since it is smaller than the sum of its proper divisors (214422976).

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

194929940 is a wasteful number, since it uses less digits than its factorization.

194929940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9746506 (or 9746504 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 194929940 is about 13961.7312680054. The cubic root of 194929940 is about 579.8195435430.

The spelling of 194929940 in words is "one hundred ninety-four million, nine hundred twenty-nine thousand, nine hundred forty".