2047487838 has 64 divisors (see below), whose sum is σ = 4563516672. Its totient is φ = 607143680.

The previous prime is 2047487831. The next prime is 2047487839. The reversal of 2047487838 is 8387847402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2047487831) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2388706 + ... + 2389562.

It is an arithmetic number, because the mean of its divisors is an integer number (71304948).

Almost surely, 2^2047487838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2047487838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2281758336).

2047487838 is an abundant number, since it is smaller than the sum of its proper divisors (2516028834).

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

2047487838 is a wasteful number, since it uses less digits than its factorization.

2047487838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609.

The product of its (nonzero) digits is 2408448, while the sum is 51.

The square root of 2047487838 is about 45249.1749980041. The cubic root of 2047487838 is about 1269.8149725278.

The spelling of 2047487838 in words is "two billion, forty-seven million, four hundred eighty-seven thousand, eight hundred thirty-eight".