404348779 has 8 divisors (see below), whose sum is σ = 418761728. Its totient is φ = 390021480.

The previous prime is 404348761. The next prime is 404348783. The reversal of 404348779 is 977843404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404348779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404348279) 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 7 ways as a sum of consecutive naturals, for example, 11727 + ... + 30760.

It is an arithmetic number, because the mean of its divisors is an integer number (52345216).

Almost surely, 2^404348779 is an apocalyptic number.

404348779 is a deficient number, since it is larger than the sum of its proper divisors (14412949).

404348779 is a wasteful number, since it uses less digits than its factorization.

404348779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42825.

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 404348779 is about 20108.4255723813. The cubic root of 404348779 is about 739.4668542299.

The spelling of 404348779 in words is "four hundred four million, three hundred forty-eight thousand, seven hundred seventy-nine".