420455242132 has 6 divisors (see below), whose sum is σ = 735796673738. Its totient is φ = 210227621064.

The previous prime is 420455242091. The next prime is 420455242133. The reversal of 420455242132 is 231242554024.

It can be written as a sum of positive squares in only one way, i.e., 270435361156 + 150019880976 = 520034^2 + 387324^2 .

It is a super-2 number, since 2×420455242132² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420455242133) 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 as a sum of consecutive naturals, namely, 52556905263 + ... + 52556905270.

Almost surely, 2^420455242132 is an apocalyptic number.

It is an amenable number.

420455242132 is a deficient number, since it is larger than the sum of its proper divisors (315341431606).

420455242132 is a wasteful number, since it uses less digits than its factorization.

420455242132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105113810537 (or 105113810535 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 420455242132 its reverse (231242554024), we get a palindrome (651697796156).

The spelling of 420455242132 in words is "four hundred twenty billion, four hundred fifty-five million, two hundred forty-two thousand, one hundred thirty-two".