426189406 has 8 divisors (see below), whose sum is σ = 642529800. Its totient is φ = 212012808.

The previous prime is 426189367. The next prime is 426189419. The reversal of 426189406 is 604981624.

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, 540456 + ... + 541243.

It is an arithmetic number, because the mean of its divisors is an integer number (80316225).

Almost surely, 2^426189406 is an apocalyptic number.

426189406 is a deficient number, since it is larger than the sum of its proper divisors (216340394).

426189406 is a wasteful number, since it uses less digits than its factorization.

426189406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081898.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 426189406 is about 20644.3553059910. The cubic root of 426189406 is about 752.5480187015.

The spelling of 426189406 in words is "four hundred twenty-six million, one hundred eighty-nine thousand, four hundred six".