2231540366 has 32 divisors (see below), whose sum is σ = 3709255680. Its totient is φ = 998373600.

The previous prime is 2231540347. The next prime is 2231540383. The reversal of 2231540366 is 6630451322.

It is a super-3 number, since 3×2231540366³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

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, 1744115 + ... + 1745393.

It is an arithmetic number, because the mean of its divisors is an integer number (115914240).

Almost surely, 2^2231540366 is an apocalyptic number.

2231540366 is a deficient number, since it is larger than the sum of its proper divisors (1477715314).

2231540366 is a wasteful number, since it uses less digits than its factorization.

2231540366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 2231540366 is about 47239.1825289134. The cubic root of 2231540366 is about 1306.7773018944. Note that the first 3 decimals are identical.

Adding to 2231540366 its reverse (6630451322), we get a palindrome (8861991688).

The spelling of 2231540366 in words is "two billion, two hundred thirty-one million, five hundred forty thousand, three hundred sixty-six".