420000140 has 48 divisors (see below), whose sum is σ = 1009468992. Its totient is φ = 143790336.

The previous prime is 420000137. The next prime is 420000151. The reversal of 420000140 is 41000024.

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 15 ways as a sum of consecutive naturals, for example, 117662 + ... + 121178.

It is an arithmetic number, because the mean of its divisors is an integer number (21030604).

Almost surely, 2^420000140 is an apocalyptic number.

It is an amenable number.

420000140 is an abundant number, since it is smaller than the sum of its proper divisors (589468852).

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

420000140 is a wasteful number, since it uses less digits than its factorization.

420000140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386 (or 4384 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 420000140 is about 20493.9049475692. The cubic root of 420000140 is about 748.8873219315.

Adding to 420000140 its reverse (41000024), we get a palindrome (461000164).

The spelling of 420000140 in words is "four hundred twenty million, one hundred forty", and thus it is an aban number.