249240801 has 8 divisors (see below), whose sum is σ = 334157824. Its totient is φ = 165242160.

The previous prime is 249240773. The next prime is 249240809. The reversal of 249240801 is 108042942.

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

It is not a de Polignac number, because 249240801 - 2⁹ = 249240289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249240809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228961 + ... + 230046.

It is an arithmetic number, because the mean of its divisors is an integer number (41769728).

Almost surely, 2^249240801 is an apocalyptic number.

It is an amenable number.

249240801 is a deficient number, since it is larger than the sum of its proper divisors (84917023).

249240801 is a wasteful number, since it uses less digits than its factorization.

249240801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459191.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 249240801 is about 15787.3620659058. The cubic root of 249240801 is about 629.3221911468.

The spelling of 249240801 in words is "two hundred forty-nine million, two hundred forty thousand, eight hundred one".