420234136 has 32 divisors (see below), whose sum is σ = 912846240. Its totient is φ = 177631488.

The previous prime is 420234121. The next prime is 420234137. The reversal of 420234136 is 631432024.

It is a self number, because there is not a number n which added to its sum of digits gives 420234136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420234137) 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, 47311 + ... + 55486.

It is an arithmetic number, because the mean of its divisors is an integer number (28526445).

Almost surely, 2^420234136 is an apocalyptic number.

It is an amenable number.

420234136 is an abundant number, since it is smaller than the sum of its proper divisors (492612104).

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

420234136 is a wasteful number, since it uses less digits than its factorization.

420234136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102883 (or 102879 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 420234136 is about 20499.6130695191. The cubic root of 420234136 is about 749.0263727617.

The spelling of 420234136 in words is "four hundred twenty million, two hundred thirty-four thousand, one hundred thirty-six".