423551406 has 8 divisors (see below), whose sum is σ = 847102824. Its totient is φ = 141183800.

The previous prime is 423551389. The next prime is 423551441. The reversal of 423551406 is 604155324.

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

423551406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35295945 + ... + 35295956.

It is an arithmetic number, because the mean of its divisors is an integer number (105887853).

Almost surely, 2^423551406 is an apocalyptic number.

423551406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423551406 is a wasteful number, since it uses less digits than its factorization.

423551406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70591906.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 423551406 is about 20580.3645740303. The cubic root of 423551406 is about 750.9921128153.

The spelling of 423551406 in words is "four hundred twenty-three million, five hundred fifty-one thousand, four hundred six".