404140354 has 8 divisors (see below), whose sum is σ = 641870028. Its totient is φ = 190183680.

The previous prime is 404140351. The next prime is 404140361. The reversal of 404140354 is 453041404.

It can be written as a sum of positive squares in 2 ways, for example, as 392951329 + 11189025 = 19823^2 + 3345^2 .

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

It is not an unprimeable number, because it can be changed into a prime (404140351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5943207 + ... + 5943274.

Almost surely, 2^404140354 is an apocalyptic number.

404140354 is a deficient number, since it is larger than the sum of its proper divisors (237729674).

404140354 is a wasteful number, since it uses less digits than its factorization.

404140354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11886500.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 404140354 is about 20103.2423752986. The cubic root of 404140354 is about 739.3397775772.

Adding to 404140354 its reverse (453041404), we get a palindrome (857181758).

The spelling of 404140354 in words is "four hundred four million, one hundred forty thousand, three hundred fifty-four".