75065420 has 24 divisors (see below), whose sum is σ = 158462304. Its totient is φ = 29869056.

The previous prime is 75065413. The next prime is 75065443. The reversal of 75065420 is 2456057.

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, 5864 + ... + 13583.

It is an arithmetic number, because the mean of its divisors is an integer number (6602596).

Almost surely, 2^75065420 is an apocalyptic number.

It is an amenable number.

75065420 is an abundant number, since it is smaller than the sum of its proper divisors (83396884).

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

75065420 is a wasteful number, since it uses less digits than its factorization.

75065420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19649 (or 19647 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 75065420 is about 8664.0302400211. The cubic root of 75065420 is about 421.8389133833.

The spelling of 75065420 in words is "seventy-five million, sixty-five thousand, four hundred twenty".