421403211 has 12 divisors (see below), whose sum is σ = 614969992. Its totient is φ = 278038656.

The previous prime is 421403173. The next prime is 421403219. The reversal of 421403211 is 112304124.

It is not a de Polignac number, because 421403211 - 2¹⁴ = 421386827 is a prime.

It is a super-2 number, since 2×421403211² = 355161332482221042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421403219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240481 + ... + 242226.

Almost surely, 2^421403211 is an apocalyptic number.

421403211 is a deficient number, since it is larger than the sum of its proper divisors (193566781).

421403211 is a wasteful number, since it uses less digits than its factorization.

421403211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482810 (or 482807 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 421403211 is about 20528.1078280488. The cubic root of 421403211 is about 749.7203170496.

Adding to 421403211 its reverse (112304124), we get a palindrome (533707335).

The spelling of 421403211 in words is "four hundred twenty-one million, four hundred three thousand, two hundred eleven".