404243102233240 has 64 divisors (see below), whose sum is σ = 994115864367360. Its totient is φ = 147276424335360.

The previous prime is 404243102233181. The next prime is 404243102233241. The reversal of 404243102233240 is 42332201342404.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 404243102233196 and 404243102233205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404243102233241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9588287797 + ... + 9588329956.

It is an arithmetic number, because the mean of its divisors is an integer number (15533060380740).

Almost surely, 2^{404243102233240} is an apocalyptic number.

404243102233240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404243102233240 is an abundant number, since it is smaller than the sum of its proper divisors (589872762134120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404243102233240 is a wasteful number, since it uses less digits than its factorization.

404243102233240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19176617812 (or 19176617808 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 404243102233240 its reverse (42332201342404), we get a palindrome (446575303575644).

The spelling of 404243102233240 in words is "four hundred four trillion, two hundred forty-three billion, one hundred two million, two hundred thirty-three thousand, two hundred forty".