2231403540 has 48 divisors (see below), whose sum is σ = 6323220288. Its totient is φ = 587870464.

The previous prime is 2231403539. The next prime is 2231403547. The reversal of 2231403540 is 453041322.

It is a super-3 number, since 3×2231403540³ (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 2231403540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231403547) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 219057 + ... + 229016.

It is an arithmetic number, because the mean of its divisors is an integer number (131733756).

Almost surely, 2^2231403540 is an apocalyptic number.

2231403540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231403540 is an abundant number, since it is smaller than the sum of its proper divisors (4091816748).

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

2231403540 is a wasteful number, since it uses less digits than its factorization.

2231403540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448168 (or 448166 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 2231403540 is about 47237.7342809750. The cubic root of 2231403540 is about 1306.7505931736.

Adding to 2231403540 its reverse (453041322), we get a palindrome (2684444862).

The spelling of 2231403540 in words is "two billion, two hundred thirty-one million, four hundred three thousand, five hundred forty".