194292138 has 32 divisors (see below), whose sum is σ = 410034240. Its totient is φ = 61205760.

The previous prime is 194292107. The next prime is 194292187. The reversal of 194292138 is 831292491.

194292138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×194292138² = 75498869777222088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 194292096 and 194292105.

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, 50706 + ... + 54402.

It is an arithmetic number, because the mean of its divisors is an integer number (12813570).

Almost surely, 2^194292138 is an apocalyptic number.

194292138 is an abundant number, since it is smaller than the sum of its proper divisors (215742102).

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

194292138 is a wasteful number, since it uses less digits than its factorization.

194292138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182.

The product of its digits is 31104, while the sum is 39.

The square root of 194292138 is about 13938.8714751231. The cubic root of 194292138 is about 579.1864714193.

The spelling of 194292138 in words is "one hundred ninety-four million, two hundred ninety-two thousand, one hundred thirty-eight".