2231584540 has 12 divisors (see below), whose sum is σ = 4686327576. Its totient is φ = 892633808.

The previous prime is 2231584501. The next prime is 2231584541. The reversal of 2231584540 is 454851322.

It is a super-3 number, since 3×2231584540³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231584496 and 2231584505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231584541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55789594 + ... + 55789633.

It is an arithmetic number, because the mean of its divisors is an integer number (390527298).

Almost surely, 2^2231584540 is an apocalyptic number.

2231584540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231584540 is an abundant number, since it is smaller than the sum of its proper divisors (2454743036).

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

2231584540 is a wasteful number, since it uses less digits than its factorization.

2231584540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111579236 (or 111579234 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 2231584540 is about 47239.6500833781. The cubic root of 2231584540 is about 1306.7859245182.

The spelling of 2231584540 in words is "two billion, two hundred thirty-one million, five hundred eighty-four thousand, five hundred forty".