419616681 has 16 divisors (see below), whose sum is σ = 611306688. Its totient is φ = 253915200.

The previous prime is 419616677. The next prime is 419616683. The reversal of 419616681 is 186616914.

It is not a de Polignac number, because 419616681 - 2² = 419616677 is a prime.

It is a super-2 number, since 2×419616681² = 352156317946911522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (419616683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12195 + ... + 31431.

It is an arithmetic number, because the mean of its divisors is an integer number (38206668).

Almost surely, 2^419616681 is an apocalyptic number.

It is an amenable number.

419616681 is a deficient number, since it is larger than the sum of its proper divisors (191690007).

419616681 is a wasteful number, since it uses less digits than its factorization.

419616681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19912.

The product of its digits is 62208, while the sum is 42.

The square root of 419616681 is about 20484.5473711283. The cubic root of 419616681 is about 748.6593418311.

The spelling of 419616681 in words is "four hundred nineteen million, six hundred sixteen thousand, six hundred eighty-one".