421417936 has 20 divisors (see below), whose sum is σ = 816912000. Its totient is φ = 210601952.

The previous prime is 421417921. The next prime is 421417939. The reversal of 421417936 is 639714124.

It is a junction number, because it is equal to n+sod(n) for n = 421417895 and 421417904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421417939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32895 + ... + 43873.

It is an arithmetic number, because the mean of its divisors is an integer number (40845600).

Almost surely, 2^421417936 is an apocalyptic number.

It is an amenable number.

421417936 is a deficient number, since it is larger than the sum of its proper divisors (395494064).

421417936 is a wasteful number, since it uses less digits than its factorization.

421417936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13386 (or 13380 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 421417936 is about 20528.4664795011. The cubic root of 421417936 is about 749.7290493854.

The spelling of 421417936 in words is "four hundred twenty-one million, four hundred seventeen thousand, nine hundred thirty-six".