194947938 has 32 divisors (see below), whose sum is σ = 435187200. Its totient is φ = 64687248.

The previous prime is 194947919. The next prime is 194947943. The reversal of 194947938 is 839749491.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3948 + ... + 20136.

It is an arithmetic number, because the mean of its divisors is an integer number (13599600).

Almost surely, 2^194947938 is an apocalyptic number.

194947938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

194947938 is an abundant number, since it is smaller than the sum of its proper divisors (240239262).

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

194947938 is a wasteful number, since it uses less digits than its factorization.

194947938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16423 (or 16417 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 194947938 is about 13962.3758007010. The cubic root of 194947938 is about 579.8373880243.

The spelling of 194947938 in words is "one hundred ninety-four million, nine hundred forty-seven thousand, nine hundred thirty-eight".