421168678 has 16 divisors (see below), whose sum is σ = 723580704. Its totient is φ = 180106560.

The previous prime is 421168661. The next prime is 421168681. The reversal of 421168678 is 876861124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26175 + ... + 39082.

It is an arithmetic number, because the mean of its divisors is an integer number (45223794).

Almost surely, 2^421168678 is an apocalyptic number.

421168678 is a deficient number, since it is larger than the sum of its proper divisors (302412026).

421168678 is a wasteful number, since it uses less digits than its factorization.

421168678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65727.

The product of its digits is 129024, while the sum is 43.

The square root of 421168678 is about 20522.3945483952. The cubic root of 421168678 is about 749.5812050060.

The spelling of 421168678 in words is "four hundred twenty-one million, one hundred sixty-eight thousand, six hundred seventy-eight".