2240406234 has 72 divisors (see below), whose sum is σ = 5649576660. Its totient is φ = 638964480.

The previous prime is 2240406221. The next prime is 2240406247. The reversal of 2240406234 is 4326040422.

2240406234 is a `hidden beast` number, since 2 + 24 + 0 + 406 + 234 = 666.

It is an interprime number because it is at equal distance from previous prime (2240406221) and next prime (2240406247).

It can be written as a sum of positive squares in 2 ways, for example, as 1815015609 + 425390625 = 42603^2 + 20625^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2240406198 and 2240406207.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6772 + ... + 67280.

Almost surely, 2^2240406234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2240406234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2824788330).

2240406234 is an abundant number, since it is smaller than the sum of its proper divisors (3409170426).

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

2240406234 is a wasteful number, since it uses less digits than its factorization.

2240406234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60556 (or 60542 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 2240406234 is about 47332.9297001570. The cubic root of 2240406234 is about 1308.5056156249.

Adding to 2240406234 its reverse (4326040422), we get a palindrome (6566446656).

The spelling of 2240406234 in words is "two billion, two hundred forty million, four hundred six thousand, two hundred thirty-four".