404444377 has 4 divisors (see below), whose sum is σ = 414308916. Its totient is φ = 394579840.

The previous prime is 404444357. The next prime is 404444389. The reversal of 404444377 is 773444404.

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 9865881 + 394578496 = 3141^2 + 19864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404444377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404444357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4932208 + ... + 4932289.

It is an arithmetic number, because the mean of its divisors is an integer number (103577229).

Almost surely, 2^404444377 is an apocalyptic number.

It is an amenable number.

404444377 is a deficient number, since it is larger than the sum of its proper divisors (9864539).

404444377 is an equidigital number, since it uses as much as digits as its factorization.

404444377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9864538.

The product of its (nonzero) digits is 150528, while the sum is 37.

The square root of 404444377 is about 20110.8024951766. The cubic root of 404444377 is about 739.5251256907.

The spelling of 404444377 in words is "four hundred four million, four hundred forty-four thousand, three hundred seventy-seven".