75030780 has 48 divisors (see below), whose sum is σ = 229186944. Its totient is φ = 18189120.

The previous prime is 75030763. The next prime is 75030797. The reversal of 75030780 is 8703057.

It is an interprime number because it is at equal distance from previous prime (75030763) and next prime (75030797).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56182 + ... + 57501.

It is an arithmetic number, because the mean of its divisors is an integer number (4774728).

Almost surely, 2^75030780 is an apocalyptic number.

It is an amenable number.

75030780 is an abundant number, since it is smaller than the sum of its proper divisors (154156164).

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

75030780 is a wasteful number, since it uses less digits than its factorization.

75030780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113706 (or 113704 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 75030780 is about 8662.0309396815. The cubic root of 75030780 is about 421.7740155549.

The spelling of 75030780 in words is "seventy-five million, thirty thousand, seven hundred eighty".