9005450920 has 32 divisors (see below), whose sum is σ = 20391337800. Its totient is φ = 3579234048.

The previous prime is 9005450897. The next prime is 9005450921. The reversal of 9005450920 is 290545009.

It can be written as a sum of positive squares in 4 ways, for example, as 7405290916 + 1600160004 = 86054^2 + 40002^2 .

It is not an unprimeable number, because it can be changed into a prime (9005450921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710715 + ... + 723274.

Almost surely, 2^9005450920 is an apocalyptic number.

It is an amenable number.

9005450920 is an abundant number, since it is smaller than the sum of its proper divisors (11385886880).

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

9005450920 is a wasteful number, since it uses less digits than its factorization.

9005450920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434157 (or 1434153 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 9005450920 is about 94897.0543273078. The cubic root of 9005450920 is about 2080.5036779491.

Adding to 9005450920 its reverse (290545009), we get a palindrome (9295995929).

The spelling of 9005450920 in words is "nine billion, five million, four hundred fifty thousand, nine hundred twenty".