44778136 has 128 divisors (see below), whose sum is σ = 106444800. Its totient is φ = 17418240.

The previous prime is 44778131. The next prime is 44778137. The reversal of 44778136 is 63187744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44778131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1041331 + ... + 1041373.

It is an arithmetic number, because the mean of its divisors is an integer number (831600).

Almost surely, 2^44778136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44778136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53222400).

44778136 is an abundant number, since it is smaller than the sum of its proper divisors (61666664).

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

44778136 is a wasteful number, since it uses less digits than its factorization.

44778136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 125 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 44778136 is about 6691.6467330546. The cubic root of 44778136 is about 355.1038141136.

The spelling of 44778136 in words is "forty-four million, seven hundred seventy-eight thousand, one hundred thirty-six".