420040040124 has 48 divisors (see below), whose sum is σ = 992561875200. Its totient is φ = 138239033856.

The previous prime is 420040040087. The next prime is 420040040131. The reversal of 420040040124 is 421040040024.

It is a self number, because there is not a number n which added to its sum of digits gives 420040040124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57097 + ... + 918335.

It is an arithmetic number, because the mean of its divisors is an integer number (20678372400).

Almost surely, 2^420040040124 is an apocalyptic number.

It is an amenable number.

420040040124 is an abundant number, since it is smaller than the sum of its proper divisors (572521835076).

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

420040040124 is a wasteful number, since it uses less digits than its factorization.

420040040124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861762 (or 861760 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 420040040124 its reverse (421040040024), we get a palindrome (841080080148).

The spelling of 420040040124 in words is "four hundred twenty billion, forty million, forty thousand, one hundred twenty-four".