30450056 has 64 divisors (see below), whose sum is σ = 70990080. Its totient is φ = 11923200.

The previous prime is 30450053. The next prime is 30450061. The reversal of 30450056 is 65005403.

It is not an unprimeable number, because it can be changed into a prime (30450053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109790 + ... + 110066.

It is an arithmetic number, because the mean of its divisors is an integer number (1109220).

Almost surely, 2^30450056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30450056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35495040).

30450056 is an abundant number, since it is smaller than the sum of its proper divisors (40540024).

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

30450056 is a wasteful number, since it uses less digits than its factorization.

30450056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 30450056 is about 5518.1569386889. The cubic root of 30450056 is about 312.2693542901.

Adding to 30450056 its reverse (65005403), we get a palindrome (95455459).

The spelling of 30450056 in words is "thirty million, four hundred fifty thousand, fifty-six".