975109044 has 144 divisors (see below), whose sum is σ = 2840745600. Its totient is φ = 254891520.

The previous prime is 975109043. The next prime is 975109049. The reversal of 975109044 is 440901579.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 975108993 and 975109011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975109043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2114974 + ... + 2115434.

It is an arithmetic number, because the mean of its divisors is an integer number (19727400).

Almost surely, 2^975109044 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 975109044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1420372800).

975109044 is an abundant number, since it is smaller than the sum of its proper divisors (1865636556).

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

975109044 is a wasteful number, since it uses less digits than its factorization.

975109044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 975109044 is about 31226.7360446141. The cubic root of 975109044 is about 991.6332066702.

The spelling of 975109044 in words is "nine hundred seventy-five million, one hundred nine thousand, forty-four".