2616609940 has 48 divisors (see below), whose sum is σ = 6340868352. Its totient is φ = 888408576.

The previous prime is 2616609917. The next prime is 2616609979. The reversal of 2616609940 is 499066162.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 76309 + ... + 105148.

It is an arithmetic number, because the mean of its divisors is an integer number (132101424).

Almost surely, 2^2616609940 is an apocalyptic number.

2616609940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2616609940 is an abundant number, since it is smaller than the sum of its proper divisors (3724258412).

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

2616609940 is a wasteful number, since it uses less digits than its factorization.

2616609940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181576 (or 181574 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 2616609940 is about 51152.8096980019. The cubic root of 2616609940 is about 1377.9908345556.

The spelling of 2616609940 in words is "two billion, six hundred sixteen million, six hundred nine thousand, nine hundred forty".