3138840546 has 32 divisors (see below), whose sum is σ = 6611189760. Its totient is φ = 990747216.

The previous prime is 3138840503. The next prime is 3138840547. The reversal of 3138840546 is 6450488313.

It is a junction number, because it is equal to n+sod(n) for n = 3138840498 and 3138840507.

It is not an unprimeable number, because it can be changed into a prime (3138840547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301195 + ... + 311441.

It is an arithmetic number, because the mean of its divisors is an integer number (206599680).

Almost surely, 2^3138840546 is an apocalyptic number.

3138840546 is an abundant number, since it is smaller than the sum of its proper divisors (3472349214).

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

3138840546 is a wasteful number, since it uses less digits than its factorization.

3138840546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12958.

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 3138840546 is about 56025.3562773143. The cubic root of 3138840546 is about 1464.1640905313.

The spelling of 3138840546 in words is "three billion, one hundred thirty-eight million, eight hundred forty thousand, five hundred forty-six".