8533971940 has 24 divisors (see below), whose sum is σ = 19299906360. Its totient is φ = 3151004928.

The previous prime is 8533971917. The next prime is 8533971973. The reversal of 8533971940 is 491793358.

It can be written as a sum of positive squares in 4 ways, for example, as 1016064 + 8532955876 = 1008^2 + 92374^2 .

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, 16411225 + ... + 16411744.

It is an arithmetic number, because the mean of its divisors is an integer number (804162765).

Almost surely, 2^8533971940 is an apocalyptic number.

It is an amenable number.

8533971940 is an abundant number, since it is smaller than the sum of its proper divisors (10765934420).

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

8533971940 is a wasteful number, since it uses less digits than its factorization.

8533971940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32822991 (or 32822989 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 8533971940 is about 92379.4995656504. The cubic root of 8533971940 is about 2043.5427945188.

It can be divided in two parts, 853 and 3971940, that added together give a palindrome (3972793).

The spelling of 8533971940 in words is "eight billion, five hundred thirty-three million, nine hundred seventy-one thousand, nine hundred forty".