2734721520 has 40 divisors (see below), whose sum is σ = 8477637456. Its totient is φ = 729259008.

The previous prime is 2734721491. The next prime is 2734721531. The reversal of 2734721520 is 251274372.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×2734721520³ (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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5697097 + ... + 5697576.

Almost surely, 2^2734721520 is an apocalyptic number.

2734721520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2734721520 is an abundant number, since it is smaller than the sum of its proper divisors (5742915936).

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

2734721520 is a wasteful number, since it uses less digits than its factorization.

2734721520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11394689 (or 11394683 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 2734721520 is about 52294.5649183546. The cubic root of 2734721520 is about 1398.4202452921.

Adding to 2734721520 its reverse (251274372), we get a palindrome (2985995892).

The spelling of 2734721520 in words is "two billion, seven hundred thirty-four million, seven hundred twenty-one thousand, five hundred twenty".