3139952840 has 16 divisors (see below), whose sum is σ = 7064893980. Its totient is φ = 1255981120.

The previous prime is 3139952839. The next prime is 3139952843. The reversal of 3139952840 is 482599313.

3139952840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2678476516 + 461476324 = 51754^2 + 21482^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3139952791 and 3139952800.

It is not an unprimeable number, because it can be changed into a prime (3139952843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39249371 + ... + 39249450.

Almost surely, 2^3139952840 is an apocalyptic number.

It is an amenable number.

3139952840 is an abundant number, since it is smaller than the sum of its proper divisors (3924941140).

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

3139952840 is a wasteful number, since it uses less digits than its factorization.

3139952840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78498832 (or 78498828 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 3139952840 is about 56035.2820997628. The cubic root of 3139952840 is about 1464.3370194176.

The spelling of 3139952840 in words is "three billion, one hundred thirty-nine million, nine hundred fifty-two thousand, eight hundred forty".