2280138836 has 6 divisors (see below), whose sum is σ = 3990242970. Its totient is φ = 1140069416.

The previous prime is 2280138829. The next prime is 2280138851. The reversal of 2280138836 is 6388310822.

It can be written as a sum of positive squares in only one way, i.e., 1596002500 + 684136336 = 39950^2 + 26156^2 .

It is a super-2 number, since 2×2280138836² = 10398066222870869792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2280138793 and 2280138802.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 285017351 + ... + 285017358.

It is an arithmetic number, because the mean of its divisors is an integer number (665040495).

Almost surely, 2^2280138836 is an apocalyptic number.

It is an amenable number.

2280138836 is a deficient number, since it is larger than the sum of its proper divisors (1710104134).

2280138836 is a wasteful number, since it uses less digits than its factorization.

2280138836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570034713 (or 570034711 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 2280138836 is about 47750.7993231527. The cubic root of 2280138836 is about 1316.1955876554.

The spelling of 2280138836 in words is "two billion, two hundred eighty million, one hundred thirty-eight thousand, eight hundred thirty-six".