425971418 has 8 divisors (see below), whose sum is σ = 649432020. Its totient is φ = 209494080.

The previous prime is 425971379. The next prime is 425971421. The reversal of 425971418 is 814179524.

It can be written as a sum of positive squares in 2 ways, for example, as 348830329 + 77141089 = 18677^2 + 8783^2 .

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

It is an unprimeable number.

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, 1745663 + ... + 1745906.

Almost surely, 2^425971418 is an apocalyptic number.

425971418 is a deficient number, since it is larger than the sum of its proper divisors (223460602).

425971418 is a wasteful number, since it uses less digits than its factorization.

425971418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491632.

The product of its digits is 80640, while the sum is 41.

The square root of 425971418 is about 20639.0750277235. The cubic root of 425971418 is about 752.4196920217.

The spelling of 425971418 in words is "four hundred twenty-five million, nine hundred seventy-one thousand, four hundred eighteen".