421426368 has 112 divisors (see below), whose sum is σ = 1351605120. Its totient is φ = 127699200.

The previous prime is 421426367. The next prime is 421426387. The reversal of 421426368 is 863624124.

421426368 is a `hidden beast` number, since 4 + 2 + 14 + 2 + 636 + 8 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (421426361) 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, 7923 + ... + 30093.

Almost surely, 2^421426368 is an apocalyptic number.

421426368 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421426368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675802560).

421426368 is an abundant number, since it is smaller than the sum of its proper divisors (930178752).

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

421426368 is a wasteful number, since it uses less digits than its factorization.

421426368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22203 (or 22187 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 421426368 is about 20528.6718518271. The cubic root of 421426368 is about 749.7340497051.

The spelling of 421426368 in words is "four hundred twenty-one million, four hundred twenty-six thousand, three hundred sixty-eight".