249804329 has 4 divisors (see below), whose sum is σ = 255613776. Its totient is φ = 243994884.

The previous prime is 249804323. The next prime is 249804433. The reversal of 249804329 is 923408942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 923408942 = 2 ⋅461704471.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249804329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249804323) 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, 2904659 + ... + 2904744.

It is an arithmetic number, because the mean of its divisors is an integer number (63903444).

Almost surely, 2^249804329 is an apocalyptic number.

It is an amenable number.

249804329 is a deficient number, since it is larger than the sum of its proper divisors (5809447).

249804329 is an equidigital number, since it uses as much as digits as its factorization.

249804329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5809446.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 249804329 is about 15805.1994293017. The cubic root of 249804329 is about 629.7961287087.

The spelling of 249804329 in words is "two hundred forty-nine million, eight hundred four thousand, three hundred twenty-nine".