48989178 has 128 divisors (see below), whose sum is σ = 133056000. Its totient is φ = 13063680.

The previous prime is 48989177. The next prime is 48989197. The reversal of 48989178 is 87198984.

48989178 is a `hidden beast` number, since 489 + 8 + 91 + 78 = 666.

It is a super-2 number, since 2×48989178² = 4799879122231368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48989177) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 449388 + ... + 449496.

It is an arithmetic number, because the mean of its divisors is an integer number (1039500).

Almost surely, 2^48989178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48989178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66528000).

48989178 is an abundant number, since it is smaller than the sum of its proper divisors (84066822).

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

48989178 is a wasteful number, since it uses less digits than its factorization.

48989178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 191 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 48989178 is about 6999.2269573146. The cubic root of 48989178 is about 365.9036295587.

The spelling of 48989178 in words is "forty-eight million, nine hundred eighty-nine thousand, one hundred seventy-eight".