194012290 has 8 divisors (see below), whose sum is σ = 349222140. Its totient is φ = 77604912.

The previous prime is 194012227. The next prime is 194012321. The reversal of 194012290 is 92210491.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 161874729 + 32137561 = 12723^2 + 5669^2 .

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

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, 9700605 + ... + 9700624.

Almost surely, 2^194012290 is an apocalyptic number.

194012290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194012290 is a deficient number, since it is larger than the sum of its proper divisors (155209850).

194012290 is a wasteful number, since it uses less digits than its factorization.

194012290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19401236.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 194012290 is about 13928.8294554855. The cubic root of 194012290 is about 578.9082614022.

The spelling of 194012290 in words is "one hundred ninety-four million, twelve thousand, two hundred ninety".