2231015444 has 12 divisors (see below), whose sum is σ = 4462030944. Its totient is φ = 956149464.

The previous prime is 2231015441. The next prime is 2231015447. The reversal of 2231015444 is 4445101322.

It is an interprime number because it is at equal distance from previous prime (2231015441) and next prime (2231015447).

2231015444 is an admirable number.

It is a super-3 number, since 3×2231015444³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231015441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39839534 + ... + 39839589.

It is an arithmetic number, because the mean of its divisors is an integer number (371835912).

Almost surely, 2^2231015444 is an apocalyptic number.

It is an amenable number.

2231015444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2231015444 is a wasteful number, since it uses less digits than its factorization.

2231015444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79679134 (or 79679132 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2231015444 is about 47233.6261999860. The cubic root of 2231015444 is about 1306.6748300834.

Adding to 2231015444 its reverse (4445101322), we get a palindrome (6676116766).

The spelling of 2231015444 in words is "two billion, two hundred thirty-one million, fifteen thousand, four hundred forty-four".