42559642 has 8 divisors (see below), whose sum is σ = 64404756. Its totient is φ = 21091392.

The previous prime is 42559631. The next prime is 42559651. The reversal of 42559642 is 24695524.

It can be written as a sum of positive squares in 2 ways, for example, as 30924721 + 11634921 = 5561^2 + 3411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42559642² = 3622646254336328, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 93933 + ... + 94384.

Almost surely, 2^42559642 is an apocalyptic number.

42559642 is a deficient number, since it is larger than the sum of its proper divisors (21845114).

42559642 is a wasteful number, since it uses less digits than its factorization.

42559642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188432.

The product of its digits is 86400, while the sum is 37.

The square root of 42559642 is about 6523.7751340769. The cubic root of 42559642 is about 349.1397704543.

The spelling of 42559642 in words is "forty-two million, five hundred fifty-nine thousand, six hundred forty-two".