411400661 has 8 divisors (see below), whose sum is σ = 471261504. Its totient is φ = 351812160.

The previous prime is 411400657. The next prime is 411400679. The reversal of 411400661 is 166004114.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 411400661 - 2² = 411400657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411400621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64835 + ... + 70896.

It is an arithmetic number, because the mean of its divisors is an integer number (58907688).

Almost surely, 2^411400661 is an apocalyptic number.

It is an amenable number.

411400661 is a deficient number, since it is larger than the sum of its proper divisors (59860843).

411400661 is a wasteful number, since it uses less digits than its factorization.

411400661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136171.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 411400661 is about 20283.0141004733. The cubic root of 411400661 is about 743.7408944016.

Adding to 411400661 its reverse (166004114), we get a palindrome (577404775).

The spelling of 411400661 in words is "four hundred eleven million, four hundred thousand, six hundred sixty-one".