975012228 has 72 divisors (see below), whose sum is σ = 2667083328. Its totient is φ = 310866336.

The previous prime is 975012193. The next prime is 975012253. The reversal of 975012228 is 822210579.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 975012192 and 975012201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 550 + ... + 44162.

It is an arithmetic number, because the mean of its divisors is an integer number (37042824).

Almost surely, 2^975012228 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 975012228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1333541664).

975012228 is an abundant number, since it is smaller than the sum of its proper divisors (1692071100).

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

975012228 is a wasteful number, since it uses less digits than its factorization.

975012228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43655 (or 43641 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 975012228 is about 31225.1857960845. The cubic root of 975012228 is about 991.6003867039.

The spelling of 975012228 in words is "nine hundred seventy-five million, twelve thousand, two hundred twenty-eight".