426995840 has 32 divisors (see below), whose sum is σ = 1020788460. Its totient is φ = 170798080.

The previous prime is 426995827. The next prime is 426995861. The reversal of 426995840 is 48599624.

It can be written as a sum of positive squares in 2 ways, for example, as 373880896 + 53114944 = 19336^2 + 7288^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332951 + ... + 334230.

Almost surely, 2^426995840 is an apocalyptic number.

426995840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426995840 is an abundant number, since it is smaller than the sum of its proper divisors (593792620).

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

426995840 is an equidigital number, since it uses as much as digits as its factorization.

426995840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667200 (or 667188 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 426995840 is about 20663.8776612716. The cubic root of 426995840 is about 753.0223758171.

The spelling of 426995840 in words is "four hundred twenty-six million, nine hundred ninety-five thousand, eight hundred forty".