249794774 has 8 divisors (see below), whose sum is σ = 375040128. Its totient is φ = 124781400.

The previous prime is 249794771. The next prime is 249794791. The reversal of 249794774 is 477497942.

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

It is a super-2 number, since 2×249794774² = 124794858235422152, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249794771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55277 + ... + 59624.

It is an arithmetic number, because the mean of its divisors is an integer number (46880016).

Almost surely, 2^249794774 is an apocalyptic number.

249794774 is a deficient number, since it is larger than the sum of its proper divisors (125245354).

249794774 is a wasteful number, since it uses less digits than its factorization.

249794774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115990.

The product of its digits is 3556224, while the sum is 53.

The square root of 249794774 is about 15804.8971524651. The cubic root of 249794774 is about 629.7880987188.

The spelling of 249794774 in words is "two hundred forty-nine million, seven hundred ninety-four thousand, seven hundred seventy-four".