75567420 has 72 divisors (see below), whose sum is σ = 239200416. Its totient is φ = 19274112.

The previous prime is 75567409. The next prime is 75567439. The reversal of 75567420 is 2476557.

75567420 is a `hidden beast` number, since 75 + 567 + 4 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4987 + ... + 13266.

It is an arithmetic number, because the mean of its divisors is an integer number (3322228).

Almost surely, 2^75567420 is an apocalyptic number.

It is an amenable number.

75567420 is an abundant number, since it is smaller than the sum of its proper divisors (163632996).

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

75567420 is a wasteful number, since it uses less digits than its factorization.

75567420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18291 (or 18286 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 75567420 is about 8692.9523178262. The cubic root of 75567420 is about 422.7771741930. Note that the first 3 decimals are identical.

The spelling of 75567420 in words is "seventy-five million, five hundred sixty-seven thousand, four hundred twenty".