426982644 has 96 divisors (see below), whose sum is σ = 1219276800. Its totient is φ = 128141280.

The previous prime is 426982643. The next prime is 426982679. The reversal of 426982644 is 446289624.

It is a self number, because there is not a number n which added to its sum of digits gives 426982644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426982643) 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 31 ways as a sum of consecutive naturals, for example, 125437 + ... + 128795.

It is an arithmetic number, because the mean of its divisors is an integer number (12700800).

Almost surely, 2^426982644 is an apocalyptic number.

426982644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426982644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609638400).

426982644 is an abundant number, since it is smaller than the sum of its proper divisors (792294156).

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

426982644 is a wasteful number, since it uses less digits than its factorization.

426982644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490 (or 3482 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 426982644 is about 20663.5583576498. The cubic root of 426982644 is about 753.0146185318.

The spelling of 426982644 in words is "four hundred twenty-six million, nine hundred eighty-two thousand, six hundred forty-four".