404430742 has 4 divisors (see below), whose sum is σ = 606646116. Its totient is φ = 202215370.

The previous prime is 404430701. The next prime is 404430749. The reversal of 404430742 is 247034404.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 404430742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404430749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101107684 + ... + 101107687.

It is an arithmetic number, because the mean of its divisors is an integer number (151661529).

Almost surely, 2^404430742 is an apocalyptic number.

404430742 is a deficient number, since it is larger than the sum of its proper divisors (202215374).

404430742 is a wasteful number, since it uses less digits than its factorization.

404430742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202215373.

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 404430742 is about 20110.4634954046. The cubic root of 404430742 is about 739.5168150807.

The spelling of 404430742 in words is "four hundred four million, four hundred thirty thousand, seven hundred forty-two".