9749280 has 96 divisors (see below), whose sum is σ = 32356800. Its totient is φ = 2460672.

The previous prime is 9749273. The next prime is 9749281. The reversal of 9749280 is 829479.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (9749281) 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, 8586 + ... + 9654.

It is an arithmetic number, because the mean of its divisors is an integer number (337050).

Almost surely, 2^9749280 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 9749280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16178400).

9749280 is an abundant number, since it is smaller than the sum of its proper divisors (22607520).

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

9749280 is a wasteful number, since it uses less digits than its factorization.

9749280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 9749280 is about 3122.3837047999. The cubic root of 9749280 is about 213.6276752986.

The spelling of 9749280 in words is "nine million, seven hundred forty-nine thousand, two hundred eighty".