75030220 has 12 divisors (see below), whose sum is σ = 157563504. Its totient is φ = 30012080.

The previous prime is 75030217. The next prime is 75030253. The reversal of 75030220 is 2203057.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1875736 + ... + 1875775.

It is an arithmetic number, because the mean of its divisors is an integer number (13130292).

Almost surely, 2^75030220 is an apocalyptic number.

It is an amenable number.

75030220 is an abundant number, since it is smaller than the sum of its proper divisors (82533284).

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

75030220 is a wasteful number, since it uses less digits than its factorization.

75030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751520 (or 3751518 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 75030220 is about 8661.9986146385. The cubic root of 75030220 is about 421.7729662342.

Adding to 75030220 its reverse (2203057), we get a palindrome (77233277).

The spelling of 75030220 in words is "seventy-five million, thirty thousand, two hundred twenty".