9009450 has 36 divisors (see below), whose sum is σ = 24206598. Its totient is φ = 2402400.

The previous prime is 9009443. The next prime is 9009487. The reversal of 9009450 is 549009.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4173849 + 4835601 = 2043^2 + 2199^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9561 + ... + 10460.

Almost surely, 2^9009450 is an apocalyptic number.

9009450 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9009450 is an abundant number, since it is smaller than the sum of its proper divisors (15197148).

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

9009450 is a wasteful number, since it uses less digits than its factorization.

9009450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20039 (or 20031 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 9009450 is about 3001.5745867794. The cubic root of 9009450 is about 208.0811597728.

Subtracting from 9009450 its reverse (549009), we obtain a triangular number (8460441 = T₄₁₁₃).

The spelling of 9009450 in words is "nine million, nine thousand, four hundred fifty".