404040254 has 16 divisors (see below), whose sum is σ = 617621760. Its totient is φ = 198195840.

The previous prime is 404040227. The next prime is 404040269. The reversal of 404040254 is 452040404.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20642 + ... + 35130.

It is an arithmetic number, because the mean of its divisors is an integer number (38601360).

Almost surely, 2^404040254 is an apocalyptic number.

404040254 is a deficient number, since it is larger than the sum of its proper divisors (213581506).

404040254 is a wasteful number, since it uses less digits than its factorization.

404040254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14755.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 404040254 is about 20100.7525729760. The cubic root of 404040254 is about 739.2787311099.

Adding to 404040254 its reverse (452040404), we get a palindrome (856080658).

The spelling of 404040254 in words is "four hundred four million, forty thousand, two hundred fifty-four".