426725680 has 40 divisors (see below), whose sum is σ = 1006957872. Its totient is φ = 168140544.

The previous prime is 426725671. The next prime is 426725681. The reversal of 426725680 is 86527624.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (426725681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34447 + ... + 45166.

Almost surely, 2^426725680 is an apocalyptic number.

426725680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426725680 is an abundant number, since it is smaller than the sum of its proper divisors (580232192).

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

426725680 is a wasteful number, since it uses less digits than its factorization.

426725680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79693 (or 79687 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 426725680 is about 20657.3396157395. The cubic root of 426725680 is about 752.8635300503.

The spelling of 426725680 in words is "four hundred twenty-six million, seven hundred twenty-five thousand, six hundred eighty".