420804106 has 16 divisors (see below), whose sum is σ = 666724608. Its totient is φ = 198878400.

The previous prime is 420804103. The next prime is 420804121. The reversal of 420804106 is 601408024.

It is not an unprimeable number, because it can be changed into a prime (420804103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76255 + ... + 81586.

It is an arithmetic number, because the mean of its divisors is an integer number (41670288).

Almost surely, 2^420804106 is an apocalyptic number.

420804106 is a deficient number, since it is larger than the sum of its proper divisors (245920502).

420804106 is a wasteful number, since it uses less digits than its factorization.

420804106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157917.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 420804106 is about 20513.5103285615. The cubic root of 420804106 is about 749.3648584269.

The spelling of 420804106 in words is "four hundred twenty million, eight hundred four thousand, one hundred six".