49188678 has 48 divisors (see below), whose sum is σ = 123594240. Its totient is φ = 12774960.

The previous prime is 49188637. The next prime is 49188679. The reversal of 49188678 is 87688194.

It is a self number, because there is not a number n which added to its sum of digits gives 49188678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49188679) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243 + ... + 9921.

It is an arithmetic number, because the mean of its divisors is an integer number (2574880).

Almost surely, 2^49188678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49188678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61797120).

49188678 is an abundant number, since it is smaller than the sum of its proper divisors (74405562).

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

49188678 is a wasteful number, since it uses less digits than its factorization.

49188678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9713 (or 9702 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 49188678 is about 7013.4640513800. The cubic root of 49188678 is about 366.3996500429.

The spelling of 49188678 in words is "forty-nine million, one hundred eighty-eight thousand, six hundred seventy-eight".