421313616 has 40 divisors (see below), whose sum is σ = 1209327360. Its totient is φ = 140437728.

The previous prime is 421313611. The next prime is 421313713. The reversal of 421313616 is 616313124.

421313616 is a `hidden beast` number, since 42 + 1 + 3 + 1 + 3 + 616 = 666.

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 421313616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421313611) 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 7 ways as a sum of consecutive naturals, for example, 487200 + ... + 488063.

It is an arithmetic number, because the mean of its divisors is an integer number (30233184).

Almost surely, 2^421313616 is an apocalyptic number.

It is an amenable number.

421313616 is an abundant number, since it is smaller than the sum of its proper divisors (788013744).

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

421313616 is a wasteful number, since it uses less digits than its factorization.

421313616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975280 (or 975268 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 421313616 is about 20525.9254602564. The cubic root of 421313616 is about 749.6671803299.

The spelling of 421313616 in words is "four hundred twenty-one million, three hundred thirteen thousand, six hundred sixteen".