75490680 has 64 divisors (see below), whose sum is σ = 227888640. Its totient is φ = 20004992.

The previous prime is 75490663. The next prime is 75490691. The reversal of 75490680 is 8609457.

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 15 ways as a sum of consecutive naturals, for example, 18157 + ... + 21923.

It is an arithmetic number, because the mean of its divisors is an integer number (3560760).

Almost surely, 2^75490680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75490680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113944320).

75490680 is an abundant number, since it is smaller than the sum of its proper divisors (152397960).

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

75490680 is a wasteful number, since it uses less digits than its factorization.

75490680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948 (or 3944 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 75490680 is about 8688.5372762048. The cubic root of 75490680 is about 422.6340132514.

The spelling of 75490680 in words is "seventy-five million, four hundred ninety thousand, six hundred eighty".