75664340 has 24 divisors (see below), whose sum is σ = 159089280. Its totient is φ = 30228768.

The previous prime is 75664279. The next prime is 75664349. The reversal of 75664340 is 4346657.

It is a self number, because there is not a number n which added to its sum of digits gives 75664340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75664349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19481 + ... + 23039.

It is an arithmetic number, because the mean of its divisors is an integer number (6628720).

Almost surely, 2^75664340 is an apocalyptic number.

It is an amenable number.

75664340 is an abundant number, since it is smaller than the sum of its proper divisors (83424940).

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

75664340 is a wasteful number, since it uses less digits than its factorization.

75664340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4631 (or 4629 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 75664340 is about 8698.5251623479. The cubic root of 75664340 is about 422.9578431385.

The spelling of 75664340 in words is "seventy-five million, six hundred sixty-four thousand, three hundred forty".