9138450 has 24 divisors (see below), whose sum is σ = 22663728. Its totient is φ = 2436880.

The previous prime is 9138443. The next prime is 9138463. The reversal of 9138450 is 548319.

It is a super-2 number, since 2×9138450² = 167022536805000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30312 + ... + 30611.

It is an arithmetic number, because the mean of its divisors is an integer number (944322).

Almost surely, 2^9138450 is an apocalyptic number.

9138450 is an abundant number, since it is smaller than the sum of its proper divisors (13525278).

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

9138450 is a wasteful number, since it uses less digits than its factorization.

9138450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60938 (or 60933 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 9138450 is about 3022.9869334815. The cubic root of 9138450 is about 209.0695799404.

The spelling of 9138450 in words is "nine million, one hundred thirty-eight thousand, four hundred fifty".