404252123 has 8 divisors (see below), whose sum is σ = 450385920. Its totient is φ = 359682280.

The previous prime is 404252111. The next prime is 404252131. The reversal of 404252123 is 321252404.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 404252123 - 2⁸ = 404251867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404252143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390443 + ... + 391476.

It is an arithmetic number, because the mean of its divisors is an integer number (56298240).

Almost surely, 2^404252123 is an apocalyptic number.

404252123 is a deficient number, since it is larger than the sum of its proper divisors (46133797).

404252123 is a wasteful number, since it uses less digits than its factorization.

404252123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781977.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 404252123 is about 20106.0220580800. The cubic root of 404252123 is about 739.4079285303.

It can be divided in two parts, 4042 and 52123, that added together give a palindrome (56165).

The spelling of 404252123 in words is "four hundred four million, two hundred fifty-two thousand, one hundred twenty-three".