420104406 has 16 divisors (see below), whose sum is σ = 840725424. Its totient is φ = 139948704.

The previous prime is 420104369. The next prime is 420104413. The reversal of 420104406 is 604401024.

It is a super-3 number, since 3×420104406³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10521 + ... + 30836.

It is an arithmetic number, because the mean of its divisors is an integer number (52545339).

Almost surely, 2^420104406 is an apocalyptic number.

420104406 is an abundant number, since it is smaller than the sum of its proper divisors (420621018).

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

420104406 is a wasteful number, since it uses less digits than its factorization.

420104406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43055.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 420104406 is about 20496.4486192121. The cubic root of 420104406 is about 748.9492878037.

The spelling of 420104406 in words is "four hundred twenty million, one hundred four thousand, four hundred six".