249667274 has 4 divisors (see below), whose sum is σ = 374500914. Its totient is φ = 124833636.

The previous prime is 249667261. The next prime is 249667279. The reversal of 249667274 is 472766942.

It is a happy number.

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., 211906249 + 37761025 = 14557^2 + 6145^2 .

It is not an unprimeable number, because it can be changed into a prime (249667279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62416817 + ... + 62416820.

Almost surely, 2^249667274 is an apocalyptic number.

249667274 is a deficient number, since it is larger than the sum of its proper divisors (124833640).

249667274 is a wasteful number, since it uses less digits than its factorization.

249667274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124833639.

The product of its digits is 1016064, while the sum is 47.

The square root of 249667274 is about 15800.8630776929. The cubic root of 249667274 is about 629.6809285446.

The spelling of 249667274 in words is "two hundred forty-nine million, six hundred sixty-seven thousand, two hundred seventy-four".