249997194 has 24 divisors (see below), whose sum is σ = 541955232. Its totient is φ = 83287080.

The previous prime is 249997151. The next prime is 249997201. The reversal of 249997194 is 491799942.

It is a self number, because there is not a number n which added to its sum of digits gives 249997194.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54739 + ... + 59129.

It is an arithmetic number, because the mean of its divisors is an integer number (22581468).

Almost surely, 2^249997194 is an apocalyptic number.

249997194 is an abundant number, since it is smaller than the sum of its proper divisors (291958038).

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

249997194 is a wasteful number, since it uses less digits than its factorization.

249997194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7562 (or 7559 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 249997194 is about 15811.2995670818. The cubic root of 249997194 is about 629.9581680463.

The spelling of 249997194 in words is "two hundred forty-nine million, nine hundred ninety-seven thousand, one hundred ninety-four".