249423230 has 24 divisors (see below), whose sum is σ = 522262728. Its totient is φ = 85516368.

The previous prime is 249423227. The next prime is 249423259. The reversal of 249423230 is 32324942.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 249423193 and 249423202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254024 + ... + 255003.

It is an arithmetic number, because the mean of its divisors is an integer number (21760947).

Almost surely, 2^249423230 is an apocalyptic number.

249423230 is an abundant number, since it is smaller than the sum of its proper divisors (272839498).

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

249423230 is a wasteful number, since it uses less digits than its factorization.

249423230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509048 (or 509041 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 249423230 is about 15793.1387000811. The cubic root of 249423230 is about 629.4756954666.

The spelling of 249423230 in words is "two hundred forty-nine million, four hundred twenty-three thousand, two hundred thirty".