75020330 has 32 divisors (see below), whose sum is σ = 168359040. Its totient is φ = 23382720.

The previous prime is 75020317. The next prime is 75020333. The reversal of 75020330 is 3302057.

It is not an unprimeable number, because it can be changed into a prime (75020333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47945 + ... + 49484.

It is an arithmetic number, because the mean of its divisors is an integer number (5261220).

Almost surely, 2^75020330 is an apocalyptic number.

75020330 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

75020330 is an abundant number, since it is smaller than the sum of its proper divisors (93338710).

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

75020330 is a wasteful number, since it uses less digits than its factorization.

75020330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97454.

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

The square root of 75020330 is about 8661.4277114111. The cubic root of 75020330 is about 421.7544336220.

Adding to 75020330 its reverse (3302057), we get a palindrome (78322387).

The spelling of 75020330 in words is "seventy-five million, twenty thousand, three hundred thirty".