420202116 has 36 divisors (see below), whose sum is σ = 1062931324. Its totient is φ = 139968000.

The previous prime is 420202103. The next prime is 420202121. The reversal of 420202116 is 611202024.

It can be written as a sum of positive squares in 2 ways, for example, as 240374016 + 179828100 = 15504^2 + 13410^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61596 + ... + 68076.

Almost surely, 2^420202116 is an apocalyptic number.

It is an amenable number.

420202116 is an abundant number, since it is smaller than the sum of its proper divisors (642729208).

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

420202116 is a wasteful number, since it uses less digits than its factorization.

420202116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8292 (or 8287 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 420202116 is about 20498.8320642909. The cubic root of 420202116 is about 749.0073481026.

The spelling of 420202116 in words is "four hundred twenty million, two hundred two thousand, one hundred sixteen".