420503580344 has 32 divisors (see below), whose sum is σ = 813938505600. Its totient is φ = 203454322560.

The previous prime is 420503580323. The next prime is 420503580389. The reversal of 420503580344 is 443085305024.

It is a super-2 number, since 2×420503580344² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420503580298 and 420503580307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3733202 + ... + 3844190.

It is an arithmetic number, because the mean of its divisors is an integer number (25435578300).

Almost surely, 2^420503580344 is an apocalyptic number.

It is an amenable number.

420503580344 is a deficient number, since it is larger than the sum of its proper divisors (393434925256).

420503580344 is a wasteful number, since it uses less digits than its factorization.

420503580344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126303 (or 126299 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 420503580344 its reverse (443085305024), we get a palindrome (863588885368).

The spelling of 420503580344 in words is "four hundred twenty billion, five hundred three million, five hundred eighty thousand, three hundred forty-four".