9150640 has 40 divisors (see below), whose sum is σ = 21494160. Its totient is φ = 3622656.

The previous prime is 9150637. The next prime is 9150653. The reversal of 9150640 is 460519.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8026 + ... + 9094.

It is an arithmetic number, because the mean of its divisors is an integer number (537354).

Almost surely, 2^9150640 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 9150640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10747080).

9150640 is an abundant number, since it is smaller than the sum of its proper divisors (12343520).

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

9150640 is a wasteful number, since it uses less digits than its factorization.

9150640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 9150640 is about 3025.0024793378. The cubic root of 9150640 is about 209.1624996304.

The spelling of 9150640 in words is "nine million, one hundred fifty thousand, six hundred forty".