2945659990 has 128 divisors (see below), whose sum is σ = 6876979200. Its totient is φ = 901756800.

The previous prime is 2945659973. The next prime is 2945660027. The reversal of 2945659990 is 999565492.

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 63 ways as a sum of consecutive naturals, for example, 1381225 + ... + 1383355.

It is an arithmetic number, because the mean of its divisors is an integer number (53726400).

Almost surely, 2^2945659990 is an apocalyptic number.

2945659990 is an abundant number, since it is smaller than the sum of its proper divisors (3931319210).

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

2945659990 is a wasteful number, since it uses less digits than its factorization.

2945659990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203 (or 2189 counting only the distinct ones).

The product of its (nonzero) digits is 7873200, while the sum is 58.

The square root of 2945659990 is about 54273.9347200846. The cubic root of 2945659990 is about 1433.4884738630.

The spelling of 2945659990 in words is "two billion, nine hundred forty-five million, six hundred fifty-nine thousand, nine hundred ninety".