406445877 has 16 divisors (see below), whose sum is σ = 637562880. Its totient is φ = 255024576.

The previous prime is 406445863. The next prime is 406445887. The reversal of 406445877 is 778544604.

406445877 is a `hidden beast` number, since 4 + 0 + 64 + 4 + 587 + 7 = 666.

It is not a de Polignac number, because 406445877 - 2⁸ = 406445621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406445807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442293 + ... + 443210.

It is an arithmetic number, because the mean of its divisors is an integer number (39847680).

Almost surely, 2^406445877 is an apocalyptic number.

It is an amenable number.

406445877 is a deficient number, since it is larger than the sum of its proper divisors (231117003).

406445877 is a wasteful number, since it uses less digits than its factorization.

406445877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885529 (or 885523 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The square root of 406445877 is about 20160.5028955133. The cubic root of 406445877 is about 740.7430307642.

The spelling of 406445877 in words is "four hundred six million, four hundred forty-five thousand, eight hundred seventy-seven".