233404440040 has 32 divisors (see below), whose sum is σ = 528381845280. Its totient is φ = 92789001792.

The previous prime is 233404440011. The next prime is 233404440041. The reversal of 233404440040 is 40044404332.

It is a junction number, because it is equal to n+sod(n) for n = 233404439990 and 233404440008.

It is not an unprimeable number, because it can be changed into a prime (233404440041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17892594 + ... + 17905633.

It is an arithmetic number, because the mean of its divisors is an integer number (16511932665).

Almost surely, 2^233404440040 is an apocalyptic number.

233404440040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233404440040 is an abundant number, since it is smaller than the sum of its proper divisors (294977405240).

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

233404440040 is a wasteful number, since it uses less digits than its factorization.

233404440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35798401 (or 35798397 counting only the distinct ones).

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

Adding to 233404440040 its reverse (40044404332), we get a palindrome (273448844372).

The spelling of 233404440040 in words is "two hundred thirty-three billion, four hundred four million, four hundred forty thousand, forty".