420656134 has 8 divisors (see below), whose sum is σ = 632704608. Its totient is φ = 209754600.

The previous prime is 420656129. The next prime is 420656153. The reversal of 420656134 is 431656024.

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

It is a junction number, because it is equal to n+sod(n) for n = 420656096 and 420656105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285817 + ... + 287284.

It is an arithmetic number, because the mean of its divisors is an integer number (79088076).

Almost surely, 2^420656134 is an apocalyptic number.

420656134 is a deficient number, since it is larger than the sum of its proper divisors (212048474).

420656134 is a wasteful number, since it uses less digits than its factorization.

420656134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573470.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 420656134 is about 20509.9033152280. The cubic root of 420656134 is about 749.2770123127.

The spelling of 420656134 in words is "four hundred twenty million, six hundred fifty-six thousand, one hundred thirty-four".