9274211728 has 10 divisors (see below), whose sum is σ = 17968785254. Its totient is φ = 4637105856.

The previous prime is 9274211707. The next prime is 9274211729. The reversal of 9274211728 is 8271124729.

It can be written as a sum of positive squares in only one way, i.e., 6303089664 + 2971122064 = 79392^2 + 54508^2 .

It is a super-2 number, since 2×9274211728² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9274211729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289819101 + ... + 289819132.

Almost surely, 2^9274211728 is an apocalyptic number.

It is an amenable number.

9274211728 is a deficient number, since it is larger than the sum of its proper divisors (8694573526).

9274211728 is a wasteful number, since it uses less digits than its factorization.

9274211728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579638241 (or 579638235 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 9274211728 is about 96302.7088300220. The cubic root of 9274211728 is about 2100.9981443964.

The spelling of 9274211728 in words is "nine billion, two hundred seventy-four million, two hundred eleven thousand, seven hundred twenty-eight".