421407336 has 64 divisors (see below), whose sum is σ = 1213562880. Its totient is φ = 119448000.

The previous prime is 421407331. The next prime is 421407341. The reversal of 421407336 is 633704124.

It is an interprime number because it is at equal distance from previous prime (421407331) and next prime (421407341).

It is a super-3 number, since 3×421407336³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (421407331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11461 + ... + 31211.

It is an arithmetic number, because the mean of its divisors is an integer number (18961920).

Almost surely, 2^421407336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421407336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606781440).

421407336 is an abundant number, since it is smaller than the sum of its proper divisors (792155544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421407336 is a wasteful number, since it uses less digits than its factorization.

421407336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19894 (or 19890 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 421407336 is about 20528.2082998005. The cubic root of 421407336 is about 749.7227633102.

The spelling of 421407336 in words is "four hundred twenty-one million, four hundred seven thousand, three hundred thirty-six".