2147538842 has 32 divisors (see below), whose sum is σ = 3398032512. Its totient is φ = 1015939584.

The previous prime is 2147538839. The next prime is 2147538881. The reversal of 2147538842 is 2488357412.

It is a super-2 number, since 2×2147538842² = 9223846155797401928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2147538793 and 2147538802.

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 15 ways as a sum of consecutive naturals, for example, 2728373 + ... + 2729159.

It is an arithmetic number, because the mean of its divisors is an integer number (106188516).

Almost surely, 2^2147538842 is an apocalyptic number.

2147538842 is a deficient number, since it is larger than the sum of its proper divisors (1250493670).

2147538842 is a wasteful number, since it uses less digits than its factorization.

2147538842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382.

The product of its digits is 430080, while the sum is 44.

The square root of 2147538842 is about 46341.5455288233. The cubic root of 2147538842 is about 1290.1702080961.

The spelling of 2147538842 in words is "two billion, one hundred forty-seven million, five hundred thirty-eight thousand, eight hundred forty-two".