420671008 has 12 divisors (see below), whose sum is σ = 828196110. Its totient is φ = 210335488.

The previous prime is 420670949. The next prime is 420671033. The reversal of 420671008 is 800176024.

It can be written as a sum of positive squares in only one way, i.e., 398880784 + 21790224 = 19972^2 + 4668^2 .

It is a super-3 number, since 3×420671008³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572953 + ... + 6573016.

Almost surely, 2^420671008 is an apocalyptic number.

It is an amenable number.

420671008 is a deficient number, since it is larger than the sum of its proper divisors (407525102).

420671008 is a wasteful number, since it uses less digits than its factorization.

420671008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13145979 (or 13145971 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 420671008 is about 20510.2659173400. The cubic root of 420671008 is about 749.2858434490.

The spelling of 420671008 in words is "four hundred twenty million, six hundred seventy-one thousand, eight".