75818380 has 24 divisors (see below), whose sum is σ = 173693520. Its totient is φ = 27570240.

The previous prime is 75818371. The next prime is 75818387. The reversal of 75818380 is 8381857.

It is a super-3 number, since 3×75818380³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (75818387) 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, 172095 + ... + 172534.

It is an arithmetic number, because the mean of its divisors is an integer number (7237230).

Almost surely, 2^75818380 is an apocalyptic number.

It is an amenable number.

75818380 is an abundant number, since it is smaller than the sum of its proper divisors (97875140).

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

75818380 is a wasteful number, since it uses less digits than its factorization.

75818380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344649 (or 344647 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 75818380 is about 8707.3750349919. The cubic root of 75818380 is about 423.2446724998.

The spelling of 75818380 in words is "seventy-five million, eight hundred eighteen thousand, three hundred eighty".