419661 has 24 divisors (see below), whose sum is σ = 690144. Its totient is φ = 252720.

The previous prime is 419651. The next prime is 419687. The reversal of 419661 is 166914.

It is not a de Polignac number, because 419661 - 2⁶ = 419597 is a prime.

It is a super-2 number, since 2×419661² = 352230709842, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (419651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2595 + ... + 2751.

It is an arithmetic number, because the mean of its divisors is an integer number (28756).

2⁴¹⁹⁶⁶¹ is an apocalyptic number.

It is an amenable number.

419661 is a deficient number, since it is larger than the sum of its proper divisors (270483).

419661 is a wasteful number, since it uses less digits than its factorization.

419661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 171 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 419661 is about 647.8124728654. The cubic root of 419661 is about 74.8685698160.

The spelling of 419661 in words is "four hundred nineteen thousand, six hundred sixty-one".