2712921440 has 24 divisors (see below), whose sum is σ = 6409277280. Its totient is φ = 1085168512.

The previous prime is 2712921359. The next prime is 2712921443. The reversal of 2712921440 is 441292172.

It is a happy number.

It is a super-2 number, since 2×2712921440² = 14719885479223347200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 2712921397 and 2712921406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2712921443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8477720 + ... + 8478039.

It is an arithmetic number, because the mean of its divisors is an integer number (267053220).

Almost surely, 2^2712921440 is an apocalyptic number.

2712921440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2712921440 is an abundant number, since it is smaller than the sum of its proper divisors (3696355840).

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

2712921440 is a wasteful number, since it uses less digits than its factorization.

2712921440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16955774 (or 16955766 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2712921440 is about 52085.7124363294. The cubic root of 2712921440 is about 1394.6944496795.

The spelling of 2712921440 in words is "two billion, seven hundred twelve million, nine hundred twenty-one thousand, four hundred forty".