48991938 has 8 divisors (see below), whose sum is σ = 97983888. Its totient is φ = 16330644.

The previous prime is 48991897. The next prime is 48991939. The reversal of 48991938 is 83919984.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

48991938 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (48991939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4082656 + ... + 4082667.

It is an arithmetic number, because the mean of its divisors is an integer number (12247986).

Almost surely, 2^48991938 is an apocalyptic number.

48991938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

48991938 is a wasteful number, since it uses less digits than its factorization.

48991938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8165328.

The product of its digits is 559872, while the sum is 51.

The square root of 48991938 is about 6999.4241191687. The cubic root of 48991938 is about 365.9105009746.

The spelling of 48991938 in words is "forty-eight million, nine hundred ninety-one thousand, nine hundred thirty-eight".