48139218 has 64 divisors (see below), whose sum is σ = 111744000. Its totient is φ = 15344640.

The previous prime is 48139181. The next prime is 48139229. The reversal of 48139218 is 81293184.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (13824) is a multiple of the sum of its prime factors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249330 + ... + 249522.

It is an arithmetic number, because the mean of its divisors is an integer number (1746000).

Almost surely, 2^48139218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48139218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55872000).

48139218 is an abundant number, since it is smaller than the sum of its proper divisors (63604782).

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

48139218 is a wasteful number, since it uses less digits than its factorization.

48139218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 378 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 48139218 is about 6938.2431493859. The cubic root of 48139218 is about 363.7751348345.

The spelling of 48139218 in words is "forty-eight million, one hundred thirty-nine thousand, two hundred eighteen".