75306830 has 16 divisors (see below), whose sum is σ = 141446304. Its totient is φ = 28812960.

The previous prime is 75306827. The next prime is 75306857. The reversal of 75306830 is 3860357.

It is a happy number.

It is a super-2 number, since 2×75306830² = 11342237289297800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163481 + ... + 163940.

It is an arithmetic number, because the mean of its divisors is an integer number (8840394).

Almost surely, 2^75306830 is an apocalyptic number.

75306830 is a deficient number, since it is larger than the sum of its proper divisors (66139474).

75306830 is a wasteful number, since it uses less digits than its factorization.

75306830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327451.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 75306830 is about 8677.9507949746. The cubic root of 75306830 is about 422.2906400619.

The spelling of 75306830 in words is "seventy-five million, three hundred six thousand, eight hundred thirty".