30750450 has 96 divisors (see below), whose sum is σ = 83566080. Its totient is φ = 7449600.

The previous prime is 30750449. The next prime is 30750463. The reversal of 30750450 is 5405703.

It is a self number, because there is not a number n which added to its sum of digits gives 30750450.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78856 + ... + 79244.

It is an arithmetic number, because the mean of its divisors is an integer number (870480).

Almost surely, 2^30750450 is an apocalyptic number.

30750450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30750450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41783040).

30750450 is an abundant number, since it is smaller than the sum of its proper divisors (52815630).

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

30750450 is a wasteful number, since it uses less digits than its factorization.

30750450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 30750450 is about 5545.3088281898. The cubic root of 30750450 is about 313.2928560458.

The spelling of 30750450 in words is "thirty million, seven hundred fifty thousand, four hundred fifty".