75905420 has 24 divisors (see below), whose sum is σ = 160868400. Its totient is φ = 30082752.

The previous prime is 75905419. The next prime is 75905471. The reversal of 75905420 is 2450957.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15230 + ... + 19589.

It is an arithmetic number, because the mean of its divisors is an integer number (6702850).

Almost surely, 2^75905420 is an apocalyptic number.

It is an amenable number.

75905420 is an abundant number, since it is smaller than the sum of its proper divisors (84962980).

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

75905420 is a wasteful number, since it uses less digits than its factorization.

75905420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34937 (or 34935 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 75905420 is about 8712.3716633303. The cubic root of 75905420 is about 423.4065731192.

The spelling of 75905420 in words is "seventy-five million, nine hundred five thousand, four hundred twenty".