420424013144 has 32 divisors (see below), whose sum is σ = 797274969120. Its totient is φ = 207826730496.

The previous prime is 420424013131. The next prime is 420424013147. The reversal of 420424013144 is 441310424024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420424013147) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 226844 + ... + 944619.

It is an arithmetic number, because the mean of its divisors is an integer number (24914842785).

Almost surely, 2^420424013144 is an apocalyptic number.

It is an amenable number.

420424013144 is a deficient number, since it is larger than the sum of its proper divisors (376850955976).

420424013144 is a wasteful number, since it uses less digits than its factorization.

420424013144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171979 (or 1171975 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 420424013144 its reverse (441310424024), we get a palindrome (861734437168).

The spelling of 420424013144 in words is "four hundred twenty billion, four hundred twenty-four million, thirteen thousand, one hundred forty-four".