975494520 has 384 divisors, whose sum is σ = 4258275840. Its totient is φ = 187038720.

The previous prime is 975494503. The next prime is 975494539. The reversal of 975494520 is 25494579.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 359007 + ... + 361713.

It is an arithmetic number, because the mean of its divisors is an integer number (11089260).

Almost surely, 2^975494520 is an apocalyptic number.

975494520 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 975494520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2129137920).

975494520 is an abundant number, since it is smaller than the sum of its proper divisors (3282781320).

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

975494520 is a wasteful number, since it uses less digits than its factorization.

975494520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755 (or 2748 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 975494520 is about 31232.9076456227. The cubic root of 975494520 is about 991.7638588762.

The spelling of 975494520 in words is "nine hundred seventy-five million, four hundred ninety-four thousand, five hundred twenty".