426686872 has 8 divisors (see below), whose sum is σ = 800037900. Its totient is φ = 213343432.

The previous prime is 426686867. The next prime is 426686881. The reversal of 426686872 is 278686624.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26667922 + ... + 26667937.

Almost surely, 2^426686872 is an apocalyptic number.

It is an amenable number.

426686872 is a deficient number, since it is larger than the sum of its proper divisors (373351028).

426686872 is a wasteful number, since it uses less digits than its factorization.

426686872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53335865 (or 53335861 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The square root of 426686872 is about 20656.4002672295. The cubic root of 426686872 is about 752.8407066339.

The spelling of 426686872 in words is "four hundred twenty-six million, six hundred eighty-six thousand, eight hundred seventy-two".