420042021432224 has 24 divisors (see below), whose sum is σ = 844552575010368. Its totient is φ = 205552478572480.

The previous prime is 420042021432203. The next prime is 420042021432233. The reversal of 420042021432224 is 422234120240024.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139641627962 + ... + 139641630969.

It is an arithmetic number, because the mean of its divisors is an integer number (35189690625432).

Almost surely, 2^{420042021432224} is an apocalyptic number.

It is an amenable number.

420042021432224 is an abundant number, since it is smaller than the sum of its proper divisors (424510553578144).

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

420042021432224 is a wasteful number, since it uses less digits than its factorization.

420042021432224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279283258988 (or 279283258980 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 420042021432224 its reverse (422234120240024), we get a palindrome (842276141672248).

The spelling of 420042021432224 in words is "four hundred twenty trillion, forty-two billion, twenty-one million, four hundred thirty-two thousand, two hundred twenty-four".