194437942 has 8 divisors (see below), whose sum is σ = 308813256. Its totient is φ = 91500192.

The previous prime is 194437913. The next prime is 194437951. The reversal of 194437942 is 249734491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×194437942² = 75612226578390728, which contains 22 as substring.

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, 2859348 + ... + 2859415.

It is an arithmetic number, because the mean of its divisors is an integer number (38601657).

Almost surely, 2^194437942 is an apocalyptic number.

194437942 is a deficient number, since it is larger than the sum of its proper divisors (114375314).

194437942 is a wasteful number, since it uses less digits than its factorization.

194437942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718782.

The product of its digits is 217728, while the sum is 43.

The square root of 194437942 is about 13944.1006163897. The cubic root of 194437942 is about 579.3313161700.

The spelling of 194437942 in words is "one hundred ninety-four million, four hundred thirty-seven thousand, nine hundred forty-two".