249389794 has 4 divisors (see below), whose sum is σ = 374084694. Its totient is φ = 124694896.

The previous prime is 249389783. The next prime is 249389831. The reversal of 249389794 is 497983942.

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., 245329569 + 4060225 = 15663^2 + 2015^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62347447 + ... + 62347450.

Almost surely, 2^249389794 is an apocalyptic number.

249389794 is a deficient number, since it is larger than the sum of its proper divisors (124694900).

249389794 is a wasteful number, since it uses less digits than its factorization.

249389794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124694899.

The product of its digits is 3919104, while the sum is 55.

The square root of 249389794 is about 15792.0801036469. The cubic root of 249389794 is about 629.4475664509.

The spelling of 249389794 in words is "two hundred forty-nine million, three hundred eighty-nine thousand, seven hundred ninety-four".