75140660 has 24 divisors (see below), whose sum is σ = 180337920. Its totient is φ = 25762464.

The previous prime is 75140657. The next prime is 75140677. The reversal of 75140660 is 6604157.

It is a super-2 number, since 2×75140660² = 11292237570471200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268220 + ... + 268499.

It is an arithmetic number, because the mean of its divisors is an integer number (7514080).

Almost surely, 2^75140660 is an apocalyptic number.

75140660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

75140660 is an abundant number, since it is smaller than the sum of its proper divisors (105197260).

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

75140660 is a wasteful number, since it uses less digits than its factorization.

75140660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536735 (or 536733 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 75140660 is about 8668.3712426268. The cubic root of 75140660 is about 421.9798063157.

The spelling of 75140660 in words is "seventy-five million, one hundred forty thousand, six hundred sixty".