420503200453444 has 12 divisors (see below), whose sum is σ = 735959078048124. Its totient is φ = 210229178153984.

The previous prime is 420503200453411. The next prime is 420503200453447. The reversal of 420503200453444 is 444354002305024.

It can be written as a sum of positive squares in 2 ways, for example, as 14301345650944 + 406201854802500 = 3781712^2 + 20154450^2 .

It is a super-2 number, since 2×420503200453444² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420503200453397 and 420503200453406.

It is not an unprimeable number, because it can be changed into a prime (420503200453447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5605475989 + ... + 5605551004.

It is an arithmetic number, because the mean of its divisors is an integer number (61329923170677).

Almost surely, 2^{420503200453444} is an apocalyptic number.

It is an amenable number.

420503200453444 is a deficient number, since it is larger than the sum of its proper divisors (315455877594680).

420503200453444 is a wasteful number, since it uses less digits than its factorization.

420503200453444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11211036374 (or 11211036372 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 40.

Adding to 420503200453444 its reverse (444354002305024), we get a palindrome (864857202758468).

The spelling of 420503200453444 in words is "four hundred twenty trillion, five hundred three billion, two hundred million, four hundred fifty-three thousand, four hundred forty-four".