2231894240 has 48 divisors (see below), whose sum is σ = 5502113568. Its totient is φ = 853940736.

The previous prime is 2231894239. The next prime is 2231894297. The reversal of 2231894240 is 424981322.

It is a super-3 number, since 3×2231894240³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231894240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299567 + ... + 306926.

It is an arithmetic number, because the mean of its divisors is an integer number (114627366).

Almost surely, 2^2231894240 is an apocalyptic number.

2231894240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231894240 is an abundant number, since it is smaller than the sum of its proper divisors (3270219328).

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

2231894240 is a wasteful number, since it uses less digits than its factorization.

2231894240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606531 (or 606523 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 2231894240 is about 47242.9279363589. The cubic root of 2231894240 is about 1306.8463737749.

The spelling of 2231894240 in words is "two billion, two hundred thirty-one million, eight hundred ninety-four thousand, two hundred forty".