420426806 has 8 divisors (see below), whose sum is σ = 633468864. Its totient is φ = 209270520.

The previous prime is 420426791. The next prime is 420426817. The reversal of 420426806 is 608624024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 470885 + ... + 471776.

It is an arithmetic number, because the mean of its divisors is an integer number (79183608).

Almost surely, 2^420426806 is an apocalyptic number.

420426806 is a deficient number, since it is larger than the sum of its proper divisors (213042058).

420426806 is a wasteful number, since it uses less digits than its factorization.

420426806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942886.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 420426806 is about 20504.3118879908. The cubic root of 420426806 is about 749.1408271014.

The spelling of 420426806 in words is "four hundred twenty million, four hundred twenty-six thousand, eight hundred six".