421616056 has 8 divisors (see below), whose sum is σ = 790530120. Its totient is φ = 210808024.

The previous prime is 421616047. The next prime is 421616057. The reversal of 421616056 is 650616124.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421616057) 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 as a sum of consecutive naturals, namely, 26350996 + ... + 26351011.

It is an arithmetic number, because the mean of its divisors is an integer number (98816265).

Almost surely, 2^421616056 is an apocalyptic number.

It is an amenable number.

421616056 is a deficient number, since it is larger than the sum of its proper divisors (368914064).

421616056 is a wasteful number, since it uses less digits than its factorization.

421616056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52702013 (or 52702009 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 421616056 is about 20533.2914068836. The cubic root of 421616056 is about 749.8465202978.

The spelling of 421616056 in words is "four hundred twenty-one million, six hundred sixteen thousand, fifty-six".