450090030 has 64 divisors (see below), whose sum is σ = 1190407680. Its totient is φ = 108210816.

The previous prime is 450090029. The next prime is 450090049. The reversal of 450090030 is 30090054.

It is a junction number, because it is equal to n+sod(n) for n = 450089979 and 450090006.

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, 3351 + ... + 30189.

It is an arithmetic number, because the mean of its divisors is an integer number (18600120).

Almost surely, 2^450090030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450090030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595203840).

450090030 is an abundant number, since it is smaller than the sum of its proper divisors (740317650).

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

450090030 is a wasteful number, since it uses less digits than its factorization.

450090030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26905.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 450090030 is about 21215.3253569206. The cubic root of 450090030 is about 766.3605333104.

The spelling of 450090030 in words is "four hundred fifty million, ninety thousand, thirty".