2438138936 has 8 divisors (see below), whose sum is σ = 4571510520. Its totient is φ = 1219069464.

The previous prime is 2438138921. The next prime is 2438138981. The reversal of 2438138936 is 6398318342.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152383676 + ... + 152383691.

It is an arithmetic number, because the mean of its divisors is an integer number (571438815).

Almost surely, 2^2438138936 is an apocalyptic number.

It is an amenable number.

2438138936 is a deficient number, since it is larger than the sum of its proper divisors (2133371584).

2438138936 is a wasteful number, since it uses less digits than its factorization.

2438138936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304767373 (or 304767369 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The square root of 2438138936 is about 49377.5144777458. The cubic root of 2438138936 is about 1345.9207334610.

The spelling of 2438138936 in words is "two billion, four hundred thirty-eight million, one hundred thirty-eight thousand, nine hundred thirty-six".