30249000 has 96 divisors (see below), whose sum is σ = 102272040. Its totient is φ = 8064000.

The previous prime is 30248993. The next prime is 30249019. The reversal of 30249000 is 94203.

It can be written as a sum of positive squares in 4 ways, for example, as 12659364 + 17589636 = 3558^2 + 4194^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7320 + ... + 10680.

Almost surely, 2^30249000 is an apocalyptic number.

30249000 is a gapful number since it is divisible by the number (30) 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 30249000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51136020).

30249000 is an abundant number, since it is smaller than the sum of its proper divisors (72023040).

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

30249000 is a wasteful number, since it uses less digits than its factorization.

30249000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388 (or 3371 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30249000 is about 5499.9090901578. The cubic root of 30249000 is about 311.5805507483.

The spelling of 30249000 in words is "thirty million, two hundred forty-nine thousand".