425440618 has 8 divisors (see below), whose sum is σ = 638258400. Its totient is φ = 212687820.

The previous prime is 425440567. The next prime is 425440619. The reversal of 425440618 is 816044524.

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

It is not an unprimeable number, because it can be changed into a prime (425440619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6483 + ... + 29881.

It is an arithmetic number, because the mean of its divisors is an integer number (79782300).

Almost surely, 2^425440618 is an apocalyptic number.

425440618 is a deficient number, since it is larger than the sum of its proper divisors (212817782).

425440618 is a wasteful number, since it uses less digits than its factorization.

425440618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32492.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 425440618 is about 20626.2119159093. The cubic root of 425440618 is about 752.1070338161.

The spelling of 425440618 in words is "four hundred twenty-five million, four hundred forty thousand, six hundred eighteen".