420140421052 has 48 divisors (see below), whose sum is σ = 805033152000. Its totient is φ = 190272173760.

The previous prime is 420140420951. The next prime is 420140421091. The reversal of 420140421052 is 250124041024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20244193 + ... + 20264935.

It is an arithmetic number, because the mean of its divisors is an integer number (16771524000).

Almost surely, 2^420140421052 is an apocalyptic number.

It is an amenable number.

420140421052 is a deficient number, since it is larger than the sum of its proper divisors (384892730948).

420140421052 is a wasteful number, since it uses less digits than its factorization.

420140421052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22426 (or 22424 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 420140421052 its reverse (250124041024), we get a palindrome (670264462076).

The spelling of 420140421052 in words is "four hundred twenty billion, one hundred forty million, four hundred twenty-one thousand, fifty-two".