9273840 has 80 divisors (see below), whose sum is σ = 30453408. Its totient is φ = 2326528.

The previous prime is 9273821. The next prime is 9273841. The reversal of 9273840 is 483729.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9273841) 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, 2944 + ... + 5216.

Almost surely, 2^9273840 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 9273840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15226704).

9273840 is an abundant number, since it is smaller than the sum of its proper divisors (21179568).

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

9273840 is a wasteful number, since it uses less digits than its factorization.

9273840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306 (or 2300 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 9273840 is about 3045.2980149732. The cubic root of 9273840 is about 210.0970073358.

The spelling of 9273840 in words is "nine million, two hundred seventy-three thousand, eight hundred forty".