75302030 has 32 divisors (see below), whose sum is σ = 142474464. Its totient is φ = 28619136.

The previous prime is 75302011. The next prime is 75302041. The reversal of 75302030 is 3020357.

It is a junction number, because it is equal to n+sod(n) for n = 75301993 and 75302011.

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, 13544 + ... + 18276.

It is an arithmetic number, because the mean of its divisors is an integer number (4452327).

Almost surely, 2^75302030 is an apocalyptic number.

75302030 is a deficient number, since it is larger than the sum of its proper divisors (67172434).

75302030 is a wasteful number, since it uses less digits than its factorization.

75302030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820.

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 75302030 is about 8677.6742275796. The cubic root of 75302030 is about 422.2816677100.

Adding to 75302030 its reverse (3020357), we get a palindrome (78322387).

The spelling of 75302030 in words is "seventy-five million, three hundred two thousand, thirty".