2239726740 has 24 divisors (see below), whose sum is σ = 6271235040. Its totient is φ = 597260448.

The previous prime is 2239726739. The next prime is 2239726757. The reversal of 2239726740 is 476279322.

It is a junction number, because it is equal to n+sod(n) for n = 2239726692 and 2239726701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18664330 + ... + 18664449.

It is an arithmetic number, because the mean of its divisors is an integer number (261301460).

Almost surely, 2^2239726740 is an apocalyptic number.

2239726740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2239726740 is an abundant number, since it is smaller than the sum of its proper divisors (4031508300).

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

2239726740 is a wasteful number, since it uses less digits than its factorization.

2239726740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37328791 (or 37328789 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 2239726740 is about 47325.7513411039. The cubic root of 2239726740 is about 1308.3733164606.

The spelling of 2239726740 in words is "two billion, two hundred thirty-nine million, seven hundred twenty-six thousand, seven hundred forty".