425839618 has 16 divisors (see below), whose sum is σ = 667935360. Its totient is φ = 203233536.

The previous prime is 425839573. The next prime is 425839627. The reversal of 425839618 is 816938524.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 12898 + ... + 31906.

It is an arithmetic number, because the mean of its divisors is an integer number (41745960).

Almost surely, 2^425839618 is an apocalyptic number.

425839618 is a deficient number, since it is larger than the sum of its proper divisors (242095742).

425839618 is a wasteful number, since it uses less digits than its factorization.

425839618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19521.

The product of its digits is 414720, while the sum is 46.

The square root of 425839618 is about 20635.8818081515. The cubic root of 425839618 is about 752.3420818496.

The spelling of 425839618 in words is "four hundred twenty-five million, eight hundred thirty-nine thousand, six hundred eighteen".