49237438 has 4 divisors (see below), whose sum is σ = 73856160. Its totient is φ = 24618718.

The previous prime is 49237403. The next prime is 49237439. The reversal of 49237438 is 83473294.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 49237438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49237439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12309358 + ... + 12309361.

It is an arithmetic number, because the mean of its divisors is an integer number (18464040).

Almost surely, 2^49237438 is an apocalyptic number.

49237438 is a deficient number, since it is larger than the sum of its proper divisors (24618722).

49237438 is a wasteful number, since it uses less digits than its factorization.

49237438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24618721.

The product of its digits is 145152, while the sum is 40.

The square root of 49237438 is about 7016.9393612885. The cubic root of 49237438 is about 366.5206788893.

The spelling of 49237438 in words is "forty-nine million, two hundred thirty-seven thousand, four hundred thirty-eight".