7533660040 has 32 divisors (see below), whose sum is σ = 16996213080. Its totient is φ = 3005379072.

The previous prime is 7533660019. The next prime is 7533660047. The reversal of 7533660040 is 400663357.

It can be written as a sum of positive squares in 4 ways, for example, as 6586620964 + 947039076 = 81158^2 + 30774^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7533659978 and 7533660005.

It is not an unprimeable number, because it can be changed into a prime (7533660047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237549 + ... + 267388.

Almost surely, 2^7533660040 is an apocalyptic number.

It is an amenable number.

7533660040 is an abundant number, since it is smaller than the sum of its proper divisors (9462553040).

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

7533660040 is a wasteful number, since it uses less digits than its factorization.

7533660040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505321 (or 505317 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 7533660040 is about 86796.6591522969. The cubic root of 7533660040 is about 1960.3577751715.

The spelling of 7533660040 in words is "seven billion, five hundred thirty-three million, six hundred sixty thousand, forty".