75780330 has 32 divisors (see below), whose sum is σ = 183000384. Its totient is φ = 20082816.

The previous prime is 75780323. The next prime is 75780343. The reversal of 75780330 is 3308757.

It is a junction number, because it is equal to n+sod(n) for n = 75780291 and 75780300.

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, 2859 + ... + 12638.

It is an arithmetic number, because the mean of its divisors is an integer number (5718762).

Almost surely, 2^75780330 is an apocalyptic number.

75780330 is an abundant number, since it is smaller than the sum of its proper divisors (107220054).

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

75780330 is a wasteful number, since it uses less digits than its factorization.

75780330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15670.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 75780330 is about 8705.1898313592. The cubic root of 75780330 is about 423.1738578566.

The spelling of 75780330 in words is "seventy-five million, seven hundred eighty thousand, three hundred thirty".