9749220 has 96 divisors (see below), whose sum is σ = 30481920. Its totient is φ = 2311680.

The previous prime is 9749197. The next prime is 9749231. The reversal of 9749220 is 229479.

9749220 = T₂₃₅ + T₂₃₆ + ... + T₄₁₄.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22405 + ... + 22835.

It is an arithmetic number, because the mean of its divisors is an integer number (317520).

Almost surely, 2^9749220 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 9749220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15240960).

9749220 is an abundant number, since it is smaller than the sum of its proper divisors (20732700).

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

9749220 is a wasteful number, since it uses less digits than its factorization.

9749220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 9749220 is about 3122.3740967411. The cubic root of 9749220 is about 213.6272370547.

The spelling of 9749220 in words is "nine million, seven hundred forty-nine thousand, two hundred twenty".