404542430 has 8 divisors (see below), whose sum is σ = 728176392. Its totient is φ = 161816968.

The previous prime is 404542417. The next prime is 404542441. The reversal of 404542430 is 34245404.

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

It is a self number, because there is not a number n which added to its sum of digits gives 404542430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20227112 + ... + 20227131.

It is an arithmetic number, because the mean of its divisors is an integer number (91022049).

Almost surely, 2^404542430 is an apocalyptic number.

404542430 is a deficient number, since it is larger than the sum of its proper divisors (323633962).

404542430 is a wasteful number, since it uses less digits than its factorization.

404542430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40454250.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 404542430 is about 20113.2401666166. The cubic root of 404542430 is about 739.5848840506.

Adding to 404542430 its reverse (34245404), we get a palindrome (438787834).

The spelling of 404542430 in words is "four hundred four million, five hundred forty-two thousand, four hundred thirty".