404024077 has 4 divisors (see below), whose sum is σ = 406117660. Its totient is φ = 401930496.

The previous prime is 404024063. The next prime is 404024081. The reversal of 404024077 is 770420404.

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 63584676 + 340439401 = 7974^2 + 18451^2 .

It is a cyclic number.

It is not a de Polignac number, because 404024077 - 2²⁷ = 269806349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404024477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046502 + ... + 1046887.

It is an arithmetic number, because the mean of its divisors is an integer number (101529415).

Almost surely, 2^404024077 is an apocalyptic number.

It is an amenable number.

404024077 is a deficient number, since it is larger than the sum of its proper divisors (2093583).

404024077 is a wasteful number, since it uses less digits than its factorization.

404024077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093582.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 404024077 is about 20100.3501710791. The cubic root of 404024077 is about 739.2688645421.

The spelling of 404024077 in words is "four hundred four million, twenty-four thousand, seventy-seven".