421360056 has 96 divisors (see below), whose sum is σ = 1274560560. Its totient is φ = 129641472.

The previous prime is 421360019. The next prime is 421360057. The reversal of 421360056 is 650063124.

421360056 is a `hidden beast` number, since 4 + 2 + 1 + 3 + 600 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421360057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16936 + ... + 33608.

Almost surely, 2^421360056 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 421360056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637280280).

421360056 is an abundant number, since it is smaller than the sum of its proper divisors (853200504).

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

421360056 is a wasteful number, since it uses less digits than its factorization.

421360056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16707 (or 16691 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 421360056 is about 20527.0566813657. The cubic root of 421360056 is about 749.6947237587.

The spelling of 421360056 in words is "four hundred twenty-one million, three hundred sixty thousand, fifty-six".