420441332 has 6 divisors (see below), whose sum is σ = 735772338. Its totient is φ = 210220664.

The previous prime is 420441317. The next prime is 420441337. The reversal of 420441332 is 233144024.

It can be written as a sum of positive squares in only one way, i.e., 289476196 + 130965136 = 17014^2 + 11444^2 .

It is a junction number, because it is equal to n+sod(n) for n = 420441298 and 420441307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420441337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52555163 + ... + 52555170.

It is an arithmetic number, because the mean of its divisors is an integer number (122628723).

Almost surely, 2^420441332 is an apocalyptic number.

It is an amenable number.

420441332 is a deficient number, since it is larger than the sum of its proper divisors (315331006).

420441332 is a wasteful number, since it uses less digits than its factorization.

420441332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105110337 (or 105110335 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 420441332 is about 20504.6661031093. Note that the first 3 decimals coincide. The cubic root of 420441332 is about 749.1494547580.

Adding to 420441332 its reverse (233144024), we get a palindrome (653585356).

The spelling of 420441332 in words is "four hundred twenty million, four hundred forty-one thousand, three hundred thirty-two".