44749638 has 16 divisors (see below), whose sum is σ = 99443760. Its totient is φ = 14916528.

The previous prime is 44749637. The next prime is 44749673. The reversal of 44749638 is 83694744.

44749638 is a `hidden beast` number, since 4 + 4 + 7 + 4 + 9 + 638 = 666.

44749638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×44749638² = 4005060202262088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 44749593 and 44749602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44749631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414295 + ... + 414402.

It is an arithmetic number, because the mean of its divisors is an integer number (6215235).

Almost surely, 2^44749638 is an apocalyptic number.

44749638 is an abundant number, since it is smaller than the sum of its proper divisors (54694122).

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

44749638 is a wasteful number, since it uses less digits than its factorization.

44749638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828708 (or 828702 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 44749638 is about 6689.5170229247. The cubic root of 44749638 is about 355.0284656140.

The spelling of 44749638 in words is "forty-four million, seven hundred forty-nine thousand, six hundred thirty-eight".