75491740 has 12 divisors (see below), whose sum is σ = 158532696. Its totient is φ = 30196688.

The previous prime is 75491699. The next prime is 75491753. The reversal of 75491740 is 4719457.

It is a self number, because there is not a number n which added to its sum of digits gives 75491740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1887274 + ... + 1887313.

It is an arithmetic number, because the mean of its divisors is an integer number (13211058).

Almost surely, 2^75491740 is an apocalyptic number.

It is an amenable number.

75491740 is an abundant number, since it is smaller than the sum of its proper divisors (83040956).

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

75491740 is a wasteful number, since it uses less digits than its factorization.

75491740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3774596 (or 3774594 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 75491740 is about 8688.5982759016. The cubic root of 75491740 is about 422.6359913762.

The spelling of 75491740 in words is "seventy-five million, four hundred ninety-one thousand, seven hundred forty".