425271378 has 64 divisors (see below), whose sum is σ = 999567360. Its totient is φ = 118115712.

The previous prime is 425271359. The next prime is 425271397. The reversal of 425271378 is 873172524.

It is an interprime number because it is at equal distance from previous prime (425271359) and next prime (425271397).

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 31 ways as a sum of consecutive naturals, for example, 221350 + ... + 223262.

It is an arithmetic number, because the mean of its divisors is an integer number (15618240).

Almost surely, 2^425271378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425271378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499783680).

425271378 is an abundant number, since it is smaller than the sum of its proper divisors (574295982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425271378 is a wasteful number, since it uses less digits than its factorization.

425271378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071.

The product of its digits is 94080, while the sum is 39.

The square root of 425271378 is about 20622.1089610156. The cubic root of 425271378 is about 752.0072913602.

The spelling of 425271378 in words is "four hundred twenty-five million, two hundred seventy-one thousand, three hundred seventy-eight".