420291116 has 24 divisors (see below), whose sum is σ = 860133120. Its totient is φ = 175935312.

The previous prime is 420291083. The next prime is 420291143. The reversal of 420291116 is 611192024.

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 7 ways as a sum of consecutive naturals, for example, 173336 + ... + 175743.

It is an arithmetic number, because the mean of its divisors is an integer number (35838880).

Almost surely, 2^420291116 is an apocalyptic number.

It is an amenable number.

420291116 is an abundant number, since it is smaller than the sum of its proper divisors (439842004).

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

420291116 is a wasteful number, since it uses less digits than its factorization.

420291116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349133 (or 349131 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 420291116 is about 20501.0028047410. The cubic root of 420291116 is about 749.0602249965.

The spelling of 420291116 in words is "four hundred twenty million, two hundred ninety-one thousand, one hundred sixteen".