404432320402 has 16 divisors (see below), whose sum is σ = 665495546400. Its totient is φ = 182805871840.

The previous prime is 404432320339. The next prime is 404432320433. The reversal of 404432320402 is 204023234404.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51346027 + ... + 51353902.

It is an arithmetic number, because the mean of its divisors is an integer number (41593471650).

Almost surely, 2^404432320402 is an apocalyptic number.

404432320402 is a deficient number, since it is larger than the sum of its proper divisors (261063225998).

404432320402 is a wasteful number, since it uses less digits than its factorization.

404432320402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102700121.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 404432320402 its reverse (204023234404), we get a palindrome (608455554806).

The spelling of 404432320402 in words is "four hundred four billion, four hundred thirty-two million, three hundred twenty thousand, four hundred two".