48391938 has 32 divisors (see below), whose sum is σ = 122901120. Its totient is φ = 13826160.

The previous prime is 48391921. The next prime is 48391943. The reversal of 48391938 is 83919384.

It is a junction number, because it is equal to n+sod(n) for n = 48391893 and 48391902.

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, 63633 + ... + 64388.

It is an arithmetic number, because the mean of its divisors is an integer number (3840660).

Almost surely, 2^48391938 is an apocalyptic number.

48391938 is an abundant number, since it is smaller than the sum of its proper divisors (74509182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48391938 is a wasteful number, since it uses less digits than its factorization.

48391938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128039 (or 128033 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 48391938 is about 6956.4314127288. The cubic root of 48391938 is about 364.4106031505.

The spelling of 48391938 in words is "forty-eight million, three hundred ninety-one thousand, nine hundred thirty-eight".