2239881436 has 24 divisors (see below), whose sum is σ = 4226599664. Its totient is φ = 1032497280.

The previous prime is 2239881433. The next prime is 2239881451. The reversal of 2239881436 is 6341889322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239881431) 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 7 ways as a sum of consecutive naturals, for example, 15616 + ... + 68728.

Almost surely, 2^2239881436 is an apocalyptic number.

2239881436 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2239881436 is a deficient number, since it is larger than the sum of its proper divisors (1986718228).

2239881436 is a wasteful number, since it uses less digits than its factorization.

2239881436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53941 (or 53939 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 2239881436 is about 47327.3856873586. The cubic root of 2239881436 is about 1308.4034385071.

The spelling of 2239881436 in words is "two billion, two hundred thirty-nine million, eight hundred eighty-one thousand, four hundred thirty-six".