75490660 has 24 divisors (see below), whose sum is σ = 181177920. Its totient is φ = 25882464.

The previous prime is 75490643. The next prime is 75490661. The reversal of 75490660 is 6609457.

It is not an unprimeable number, because it can be changed into a prime (75490661) 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, 269470 + ... + 269749.

It is an arithmetic number, because the mean of its divisors is an integer number (7549080).

Almost surely, 2^75490660 is an apocalyptic number.

75490660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

75490660 is an abundant number, since it is smaller than the sum of its proper divisors (105687260).

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

75490660 is a wasteful number, since it uses less digits than its factorization.

75490660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539235 (or 539233 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 75490660 is about 8688.5361252630. The cubic root of 75490660 is about 422.6339759281.

The spelling of 75490660 in words is "seventy-five million, four hundred ninety thousand, six hundred sixty".