406881441 has 8 divisors (see below), whose sum is σ = 602787360. Its totient is φ = 271254276.

The previous prime is 406881427. The next prime is 406881463. The reversal of 406881441 is 144188604.

It is not a de Polignac number, because 406881441 - 2²⁶ = 339772577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 406881396 and 406881405.

It is not an unprimeable number, because it can be changed into a prime (406881401) 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, 7534815 + ... + 7534868.

It is an arithmetic number, because the mean of its divisors is an integer number (75348420).

Almost surely, 2^406881441 is an apocalyptic number.

It is an amenable number.

406881441 is a deficient number, since it is larger than the sum of its proper divisors (195905919).

406881441 is a wasteful number, since it uses less digits than its factorization.

406881441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15069692 (or 15069686 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 406881441 is about 20171.3024120903. The cubic root of 406881441 is about 741.0075397944.

The spelling of 406881441 in words is "four hundred six million, eight hundred eighty-one thousand, four hundred forty-one".