42584401 has 4 divisors (see below), whose sum is σ = 42618532. Its totient is φ = 42550272.

The previous prime is 42584393. The next prime is 42584407. The reversal of 42584401 is 10448524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37638225 + 4946176 = 6135^2 + 2224^2 .

It is a cyclic number.

It is not a de Polignac number, because 42584401 - 2³ = 42584393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42584401.

It is not an unprimeable number, because it can be changed into a prime (42584407) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15120 + ... + 17713.

It is an arithmetic number, because the mean of its divisors is an integer number (10654633).

Almost surely, 2^42584401 is an apocalyptic number.

It is an amenable number.

42584401 is a deficient number, since it is larger than the sum of its proper divisors (34131).

42584401 is a wasteful number, since it uses less digits than its factorization.

42584401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34130.

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 42584401 is about 6525.6724557704. The cubic root of 42584401 is about 349.2074611540.

The spelling of 42584401 in words is "forty-two million, five hundred eighty-four thousand, four hundred one".