49993238 has 4 divisors (see below), whose sum is σ = 74989860. Its totient is φ = 24996618.

The previous prime is 49993211. The next prime is 49993271. The reversal of 49993238 is 83239994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83239994 = 2 ⋅41619997.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 49993192 and 49993201.

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, 12498308 + ... + 12498311.

It is an arithmetic number, because the mean of its divisors is an integer number (18747465).

Almost surely, 2^49993238 is an apocalyptic number.

49993238 is a deficient number, since it is larger than the sum of its proper divisors (24996622).

49993238 is a wasteful number, since it uses less digits than its factorization.

49993238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24996621.

The product of its digits is 419904, while the sum is 47.

The square root of 49993238 is about 7070.5896500928. The cubic root of 49993238 is about 368.3865415013.

Subtracting 49993238 from its reverse (83239994), we obtain a square (33246756 = 5766²).

The spelling of 49993238 in words is "forty-nine million, nine hundred ninety-three thousand, two hundred thirty-eight".