48139668 has 36 divisors (see below), whose sum is σ = 123160128. Its totient is φ = 15852240.

The previous prime is 48139643. The next prime is 48139691. The reversal of 48139668 is 86693184.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5068 + ... + 11043.

Almost surely, 2^48139668 is an apocalyptic number.

It is an amenable number.

48139668 is an abundant number, since it is smaller than the sum of its proper divisors (75020460).

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

48139668 is a wasteful number, since it uses less digits than its factorization.

48139668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16204 (or 16199 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 48139668 is about 6938.2755782687. The cubic root of 48139668 is about 363.7762683407.

The spelling of 48139668 in words is "forty-eight million, one hundred thirty-nine thousand, six hundred sixty-eight".