3123282440 has 16 divisors (see below), whose sum is σ = 7027385580. Its totient is φ = 1249312960.

The previous prime is 3123282413. The next prime is 3123282451. The reversal of 3123282440 is 442823213.

It can be written as a sum of positive squares in 2 ways, for example, as 2813029444 + 310252996 = 53038^2 + 17614^2 .

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 3 ways as a sum of consecutive naturals, for example, 39040991 + ... + 39041070.

Almost surely, 2^3123282440 is an apocalyptic number.

It is an amenable number.

3123282440 is an abundant number, since it is smaller than the sum of its proper divisors (3904103140).

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

3123282440 is a wasteful number, since it uses less digits than its factorization.

3123282440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78082072 (or 78082068 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 3123282440 is about 55886.3350023957. The cubic root of 3123282440 is about 1461.7409706380.

It can be divided in two parts, 312328 and 2440, that multiplied together give a triangular number (762080320 = T₃₉₀₄₀).

The spelling of 3123282440 in words is "three billion, one hundred twenty-three million, two hundred eighty-two thousand, four hundred forty".