9749607220 has 24 divisors (see below), whose sum is σ = 20821197600. Its totient is φ = 3833743392.

The previous prime is 9749607143. The next prime is 9749607223. The reversal of 9749607220 is 227069479.

It is a happy number.

It is a super-2 number, since 2×9749607220² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9749607223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4130010 + ... + 4132369.

It is an arithmetic number, because the mean of its divisors is an integer number (867549900).

Almost surely, 2^9749607220 is an apocalyptic number.

It is an amenable number.

9749607220 is an abundant number, since it is smaller than the sum of its proper divisors (11071590380).

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

9749607220 is a wasteful number, since it uses less digits than its factorization.

9749607220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8262447 (or 8262445 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 9749607220 is about 98740.0993517831. The cubic root of 9749607220 is about 2136.3006530299.

The spelling of 9749607220 in words is "nine billion, seven hundred forty-nine million, six hundred seven thousand, two hundred twenty".