427845638 has 16 divisors (see below), whose sum is σ = 702402624. Its totient is φ = 193838760.

The previous prime is 427845637. The next prime is 427845641. The reversal of 427845638 is 836548724.

It is a junction number, because it is equal to n+sod(n) for n = 427845592 and 427845601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427845637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24920 + ... + 38427.

It is an arithmetic number, because the mean of its divisors is an integer number (43900164).

Almost surely, 2^427845638 is an apocalyptic number.

427845638 is a deficient number, since it is larger than the sum of its proper divisors (274556986).

427845638 is a wasteful number, since it uses less digits than its factorization.

427845638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63667.

The product of its digits is 1290240, while the sum is 47.

The square root of 427845638 is about 20684.4298446924. The cubic root of 427845638 is about 753.5215944678.

The spelling of 427845638 in words is "four hundred twenty-seven million, eight hundred forty-five thousand, six hundred thirty-eight".