420738616272 has 80 divisors (see below), whose sum is σ = 1170628824960. Its totient is φ = 129445602816.

The previous prime is 420738616271. The next prime is 420738616313. The reversal of 420738616272 is 272616837024.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420738616271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8109229 + ... + 8160947.

It is an arithmetic number, because the mean of its divisors is an integer number (14632860312).

Almost surely, 2^420738616272 is an apocalyptic number.

It is an amenable number.

420738616272 is an abundant number, since it is smaller than the sum of its proper divisors (749890208688).

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

420738616272 is a wasteful number, since it uses less digits than its factorization.

420738616272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64780 (or 64774 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 420738616272 in words is "four hundred twenty billion, seven hundred thirty-eight million, six hundred sixteen thousand, two hundred seventy-two".