450090004 has 48 divisors (see below), whose sum is σ = 971557888. Its totient is φ = 177666048.

The previous prime is 450089971. The next prime is 450090007. The reversal of 450090004 is 400090054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450090007) 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, 208957 + ... + 211099.

Almost surely, 2^450090004 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 450090004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485778944).

450090004 is an abundant number, since it is smaller than the sum of its proper divisors (521467884).

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

450090004 is a wasteful number, since it uses less digits than its factorization.

450090004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744 (or 2742 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 450090004 is about 21215.3247441561. The cubic root of 450090004 is about 766.3605185538.

The spelling of 450090004 in words is "four hundred fifty million, ninety thousand, four".