420341403 has 8 divisors (see below), whose sum is σ = 564734016. Its totient is φ = 278088200.

The previous prime is 420341359. The next prime is 420341407. The reversal of 420341403 is 304143024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420341403 - 2⁸ = 420341147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420341403.

It is not an unprimeable number, because it can be changed into a prime (420341407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534393 + ... + 535178.

It is an arithmetic number, because the mean of its divisors is an integer number (70591752).

Almost surely, 2^420341403 is an apocalyptic number.

420341403 is a deficient number, since it is larger than the sum of its proper divisors (144392613).

420341403 is a wasteful number, since it uses less digits than its factorization.

420341403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069705.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 420341403 is about 20502.2292202580. The cubic root of 420341403 is about 749.0900983295.

Adding to 420341403 its reverse (304143024), we get a palindrome (724484427).

The spelling of 420341403 in words is "four hundred twenty million, three hundred forty-one thousand, four hundred three".