9247440 has 80 divisors (see below), whose sum is σ = 29248128. Its totient is φ = 2416128.

The previous prime is 9247423. The next prime is 9247463. The reversal of 9247440 is 447429.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 9247398 and 9247407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12357 + ... + 13083.

Almost surely, 2^9247440 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 9247440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14624064).

9247440 is an abundant number, since it is smaller than the sum of its proper divisors (20000688).

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

9247440 is a wasteful number, since it uses less digits than its factorization.

9247440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 9247440 is about 3040.9603746185. The cubic root of 9247440 is about 209.8974556040.

The spelling of 9247440 in words is "nine million, two hundred forty-seven thousand, four hundred forty".