345930194 has 4 divisors (see below), whose sum is σ = 518895294. Its totient is φ = 172965096.

The previous prime is 345930187. The next prime is 345930197. The reversal of 345930194 is 491039543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 188101225 + 157828969 = 13715^2 + 12563^2 .

It is not an unprimeable number, because it can be changed into a prime (345930197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86482547 + ... + 86482550.

Almost surely, 2^345930194 is an apocalyptic number.

345930194 is a deficient number, since it is larger than the sum of its proper divisors (172965100).

345930194 is a wasteful number, since it uses less digits than its factorization.

345930194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172965099.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 345930194 is about 18599.1987461826. The cubic root of 345930194 is about 701.9876798080.

The spelling of 345930194 in words is "three hundred forty-five million, nine hundred thirty thousand, one hundred ninety-four".