420622946 has 16 divisors (see below), whose sum is σ = 643572864. Its totient is φ = 206107824.

The previous prime is 420622933. The next prime is 420622949. The reversal of 420622946 is 649226024.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420622949) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 124151 + ... + 127493.

It is an arithmetic number, because the mean of its divisors is an integer number (40223304).

Almost surely, 2^420622946 is an apocalyptic number.

420622946 is a deficient number, since it is larger than the sum of its proper divisors (222949918).

420622946 is a wasteful number, since it uses less digits than its factorization.

420622946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 420622946 is about 20509.0942267083. The cubic root of 420622946 is about 749.2573068594.

The spelling of 420622946 in words is "four hundred twenty million, six hundred twenty-two thousand, nine hundred forty-six".