249430000 has 50 divisors (see below), whose sum is σ = 603919184. Its totient is φ = 99768000.

The previous prime is 249429979. The next prime is 249430003. The reversal of 249430000 is 34942.

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249430003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2472 + ... + 22471.

Almost surely, 2^249430000 is an apocalyptic number.

249430000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249430000 is an abundant number, since it is smaller than the sum of its proper divisors (354489184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249430000 is an equidigital number, since it uses as much as digits as its factorization.

249430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24971 (or 24950 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 249430000 is about 15793.3530322095. The cubic root of 249430000 is about 629.4813906217.

Adding to 249430000 its reverse (34942), we get a palindrome (249464942).

The spelling of 249430000 in words is "two hundred forty-nine million, four hundred thirty thousand".