410669681 has 4 divisors (see below), whose sum is σ = 410728164. Its totient is φ = 410611200.

The previous prime is 410669671. The next prime is 410669711. The reversal of 410669681 is 186966014.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 220671025 + 189998656 = 14855^2 + 13784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-410669681 is a prime.

It is a super-2 number, since 2×410669681² = 337299173785283522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (410669621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17000 + ... + 33321.

It is an arithmetic number, because the mean of its divisors is an integer number (102682041).

Almost surely, 2^410669681 is an apocalyptic number.

It is an amenable number.

410669681 is a deficient number, since it is larger than the sum of its proper divisors (58483).

410669681 is an equidigital number, since it uses as much as digits as its factorization.

410669681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58482.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 410669681 is about 20264.9865778391. The cubic root of 410669681 is about 743.3001383198.

The spelling of 410669681 in words is "four hundred ten million, six hundred sixty-nine thousand, six hundred eighty-one".