4000232240 has 80 divisors (see below), whose sum is σ = 9707566176. Its totient is φ = 1531545600.

The previous prime is 4000232237. The next prime is 4000232261. The reversal of 4000232240 is 422320004.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162335 + ... + 185345.

Almost surely, 2^4000232240 is an apocalyptic number.

4000232240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4000232240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4853783088).

4000232240 is an abundant number, since it is smaller than the sum of its proper divisors (5707333936).

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

4000232240 is a wasteful number, since it uses less digits than its factorization.

4000232240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23118 (or 23112 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 4000232240 is about 63247.3891951280. The cubic root of 4000232240 is about 1587.4317728753.

Adding to 4000232240 its reverse (422320004), we get a palindrome (4422552244).

The spelling of 4000232240 in words is "four billion, two hundred thirty-two thousand, two hundred forty".