2616243440 has 40 divisors (see below), whose sum is σ = 6084975120. Its totient is φ = 1046117376.

The previous prime is 2616243401. The next prime is 2616243463. The reversal of 2616243440 is 443426162.

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

It is a junction number, because it is equal to n+sod(n) for n = 2616243397 and 2616243406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343352 + ... + 350888.

It is an arithmetic number, because the mean of its divisors is an integer number (152124378).

Almost surely, 2^2616243440 is an apocalyptic number.

2616243440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2616243440 is an abundant number, since it is smaller than the sum of its proper divisors (3468731680).

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

2616243440 is a wasteful number, since it uses less digits than its factorization.

2616243440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11889 (or 11883 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 2616243440 is about 51149.2271691372. The cubic root of 2616243440 is about 1377.9264946611.

The spelling of 2616243440 in words is "two billion, six hundred sixteen million, two hundred forty-three thousand, four hundred forty".