420440400303 has 32 divisors (see below), whose sum is σ = 702048141312. Its totient is φ = 217431151200.

The previous prime is 420440400283. The next prime is 420440400307. The reversal of 420440400303 is 303004044024.

It is a happy number.

420440400303 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 420440400303 - 2¹⁸ = 420440138159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420440400307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4029403 + ... + 4132428.

It is an arithmetic number, because the mean of its divisors is an integer number (21939004416).

Almost surely, 2^420440400303 is an apocalyptic number.

420440400303 is a deficient number, since it is larger than the sum of its proper divisors (281607741009).

420440400303 is a wasteful number, since it uses less digits than its factorization.

420440400303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8162075.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 420440400303 its reverse (303004044024), we get a palindrome (723444444327).

The spelling of 420440400303 in words is "four hundred twenty billion, four hundred forty million, four hundred thousand, three hundred three".