426377864 has 64 divisors (see below), whose sum is σ = 918103680. Its totient is φ = 185275200.

The previous prime is 426377851. The next prime is 426377869. The reversal of 426377864 is 468773624.

It is not an unprimeable number, because it can be changed into a prime (426377869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244034 + ... + 245774.

It is an arithmetic number, because the mean of its divisors is an integer number (14345370).

Almost surely, 2^426377864 is an apocalyptic number.

426377864 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 426377864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459051840).

426377864 is an abundant number, since it is smaller than the sum of its proper divisors (491725816).

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

426377864 is a wasteful number, since it uses less digits than its factorization.

426377864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803 (or 1777 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 47.

The square root of 426377864 is about 20648.9191968974. The cubic root of 426377864 is about 752.6589261941.

The spelling of 426377864 in words is "four hundred twenty-six million, three hundred seventy-seven thousand, eight hundred sixty-four".