420021142044 has 96 divisors (see below), whose sum is σ = 1122081848832. Its totient is φ = 119789280000.

The previous prime is 420021142003. The next prime is 420021142087. The reversal of 420021142044 is 440241120024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177148179 + ... + 177150549.

It is an arithmetic number, because the mean of its divisors is an integer number (11688352592).

Almost surely, 2^420021142044 is an apocalyptic number.

It is an amenable number.

420021142044 is an abundant number, since it is smaller than the sum of its proper divisors (702060706788).

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

420021142044 is a wasteful number, since it uses less digits than its factorization.

420021142044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5307 (or 5305 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 420021142044 its reverse (440241120024), we get a palindrome (860262262068).

The spelling of 420021142044 in words is "four hundred twenty billion, twenty-one million, one hundred forty-two thousand, forty-four".