75305230 has 64 divisors (see below), whose sum is σ = 182020608. Its totient is φ = 21663360.

The previous prime is 75305173. The next prime is 75305239. The reversal of 75305230 is 3250357.

It is a junction number, because it is equal to n+sod(n) for n = 75305195 and 75305204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75305239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6249 + ... + 13771.

It is an arithmetic number, because the mean of its divisors is an integer number (2844072).

Almost surely, 2^75305230 is an apocalyptic number.

75305230 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

75305230 is an abundant number, since it is smaller than the sum of its proper divisors (106715378).

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

75305230 is a wasteful number, since it uses less digits than its factorization.

75305230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7561.

The product of its (nonzero) digits is 3150, while the sum is 25.

The square root of 75305230 is about 8677.8586068223. The cubic root of 75305230 is about 422.2876493203.

Adding to 75305230 its reverse (3250357), we get a palindrome (78555587).

The spelling of 75305230 in words is "seventy-five million, three hundred five thousand, two hundred thirty".