249750030 has 64 divisors (see below), whose sum is σ = 623039040. Its totient is φ = 63995904.

The previous prime is 249750019. The next prime is 249750089. The reversal of 249750030 is 30057942.

249750030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 249750030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223032 + ... + 224148.

It is an arithmetic number, because the mean of its divisors is an integer number (9734985).

Almost surely, 2^249750030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249750030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311519520).

249750030 is an abundant number, since it is smaller than the sum of its proper divisors (373289010).

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

249750030 is a wasteful number, since it uses less digits than its factorization.

249750030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 249750030 is about 15803.4815784371. The cubic root of 249750030 is about 629.7504932865.

The spelling of 249750030 in words is "two hundred forty-nine million, seven hundred fifty thousand, thirty".