9749938220 has 24 divisors (see below), whose sum is σ = 22336222608. Its totient is φ = 3545432000.

The previous prime is 9749938213. The next prime is 9749938267. The reversal of 9749938220 is 228399479.

It is a super-2 number, since 2×9749938220² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22158731 + ... + 22159170.

It is an arithmetic number, because the mean of its divisors is an integer number (930675942).

Almost surely, 2^9749938220 is an apocalyptic number.

It is an amenable number.

9749938220 is an abundant number, since it is smaller than the sum of its proper divisors (12586284388).

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

9749938220 is a wasteful number, since it uses less digits than its factorization.

9749938220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44317921 (or 44317919 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 9749938220 is about 98741.7754549714. The cubic root of 9749938220 is about 2136.3248286197.

The spelling of 9749938220 in words is "nine billion, seven hundred forty-nine million, nine hundred thirty-eight thousand, two hundred twenty".