249473000 has 128 divisors (see below), whose sum is σ = 674369280. Its totient is φ = 84614400.

The previous prime is 249472991. The next prime is 249473009. The reversal of 249473000 is 374942.

It is an interprime number because it is at equal distance from previous prime (249472991) and next prime (249473009).

It is not an unprimeable number, because it can be changed into a prime (249473009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1098887 + ... + 1099113.

It is an arithmetic number, because the mean of its divisors is an integer number (5268510).

Almost surely, 2^249473000 is an apocalyptic number.

249473000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249473000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337184640).

249473000 is an abundant number, since it is smaller than the sum of its proper divisors (424896280).

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

249473000 is a wasteful number, since it uses less digits than its factorization.

249473000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 249473000 is about 15794.7143057417. The cubic root of 249473000 is about 629.5175612835.

The spelling of 249473000 in words is "two hundred forty-nine million, four hundred seventy-three thousand".