44689680 has 120 divisors (see below), whose sum is σ = 171542592. Its totient is φ = 10213632.

The previous prime is 44689679. The next prime is 44689681. The reversal of 44689680 is 8698644.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (44689679) and next prime (44689681).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (44689681) 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 23 ways as a sum of consecutive naturals, for example, 607 + ... + 9473.

Almost surely, 2^44689680 is an apocalyptic number.

44689680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44689680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85771296).

44689680 is an abundant number, since it is smaller than the sum of its proper divisors (126852912).

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

44689680 is a wasteful number, since it uses less digits than its factorization.

44689680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8893 (or 8884 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 44689680 is about 6685.0340313270. The cubic root of 44689680 is about 354.8698325923.

It can be divided in two parts, 44689 and 680, that added together give a square (45369 = 213²).

The spelling of 44689680 in words is "forty-four million, six hundred eighty-nine thousand, six hundred eighty".