2231449587 has 12 divisors (see below), whose sum is σ = 3306214920. Its totient is φ = 1487469420.

The previous prime is 2231449579. The next prime is 2231449589. The reversal of 2231449587 is 7859441322.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

2231449587 is a `hidden beast` number, since 2 + 23 + 1 + 4 + 49 + 587 = 666.

It is not a de Polignac number, because 2231449587 - 2³ = 2231449579 is a prime.

It is a super-3 number, since 3×2231449587³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2231449589) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240912 + ... + 250002.

It is an arithmetic number, because the mean of its divisors is an integer number (275517910).

Almost surely, 2^2231449587 is an apocalyptic number.

2231449587 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2231449587 is a deficient number, since it is larger than the sum of its proper divisors (1074765333).

2231449587 is an frugal number, since it uses more digits than its factorization.

2231449587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191 (or 9094 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 2231449587 is about 47238.2216748260. The cubic root of 2231449587 is about 1306.7595817660.

It can be divided in two parts, 2231449 and 587, that added together give a square (2232036 = 1494²).

The spelling of 2231449587 in words is "two billion, two hundred thirty-one million, four hundred forty-nine thousand, five hundred eighty-seven".