2489143238 has 4 divisors (see below), whose sum is σ = 3733714860. Its totient is φ = 1244571618.

The previous prime is 2489143219. The next prime is 2489143253. The reversal of 2489143238 is 8323419842.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2489143238² = 12391668118562249288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 622285808 + ... + 622285811.

It is an arithmetic number, because the mean of its divisors is an integer number (933428715).

Almost surely, 2^2489143238 is an apocalyptic number.

2489143238 is a deficient number, since it is larger than the sum of its proper divisors (1244571622).

2489143238 is a wasteful number, since it uses less digits than its factorization.

2489143238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244571621.

The product of its digits is 331776, while the sum is 44.

The square root of 2489143238 is about 49891.3142540864. The cubic root of 2489143238 is about 1355.2413050455.

The spelling of 2489143238 in words is "two billion, four hundred eighty-nine million, one hundred forty-three thousand, two hundred thirty-eight".