421399413 has 12 divisors (see below), whose sum is σ = 617262048. Its totient is φ = 276975720.

The previous prime is 421399411. The next prime is 421399453. The reversal of 421399413 is 314993124.

It is not a de Polignac number, because 421399413 - 2¹ = 421399411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421399411) 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, 329095 + ... + 330372.

It is an arithmetic number, because the mean of its divisors is an integer number (51438504).

Almost surely, 2^421399413 is an apocalyptic number.

It is an amenable number.

421399413 is a deficient number, since it is larger than the sum of its proper divisors (195862635).

421399413 is a wasteful number, since it uses less digits than its factorization.

421399413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659544 (or 659541 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 421399413 is about 20528.0153205321. The cubic root of 421399413 is about 749.7180646966.

The spelling of 421399413 in words is "four hundred twenty-one million, three hundred ninety-nine thousand, four hundred thirteen".