194237838 has 20 divisors (see below), whose sum is σ = 435237000. Its totient is φ = 64745892.

The previous prime is 194237833. The next prime is 194237843. The reversal of 194237838 is 838732491.

It is an interprime number because it is at equal distance from previous prime (194237833) and next prime (194237843).

It is a junction number, because it is equal to n+sod(n) for n = 194237793 and 194237802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194237833) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 599338 + ... + 599661.

It is an arithmetic number, because the mean of its divisors is an integer number (21761850).

Almost surely, 2^194237838 is an apocalyptic number.

194237838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

194237838 is an abundant number, since it is smaller than the sum of its proper divisors (240999162).

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

194237838 is a wasteful number, since it uses less digits than its factorization.

194237838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199013 (or 1199004 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 194237838 is about 13936.9235486172. The cubic root of 194237838 is about 579.1325101423.

It can be divided in two parts, 19423 and 7838, that added together give a triangular number (27261 = T₂₃₃).

The spelling of 194237838 in words is "one hundred ninety-four million, two hundred thirty-seven thousand, eight hundred thirty-eight".