404243443004 has 24 divisors (see below), whose sum is σ = 710218564608. Its totient is φ = 201324982320.

The previous prime is 404243442971. The next prime is 404243443031. The reversal of 404243443004 is 400344342404.

It is a super-2 number, since 2×404243443004² (a number of 24 digits) contains 22 as substring.

It is a congruent 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, 1298747 + ... + 1579629.

It is an arithmetic number, because the mean of its divisors is an integer number (29592440192).

Almost surely, 2^404243443004 is an apocalyptic number.

It is an amenable number.

404243443004 is a deficient number, since it is larger than the sum of its proper divisors (305975121604).

404243443004 is a wasteful number, since it uses less digits than its factorization.

404243443004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282305 (or 282303 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 404243443004 its reverse (400344342404), we get a palindrome (804587785408).

The spelling of 404243443004 in words is "four hundred four billion, two hundred forty-three million, four hundred forty-three thousand, four".