44075640 has 128 divisors (see below), whose sum is σ = 152616960. Its totient is φ = 9974784.

The previous prime is 44075639. The next prime is 44075641. The reversal of 44075640 is 4657044.

It is an interprime number because it is at equal distance from previous prime (44075639) and next prime (44075641).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 44075598 and 44075607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44075641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114889 + ... + 115271.

It is an arithmetic number, because the mean of its divisors is an integer number (1192320).

Almost surely, 2^44075640 is an apocalyptic number.

44075640 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 44075640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76308480).

44075640 is an abundant number, since it is smaller than the sum of its proper divisors (108541320).

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

44075640 is a wasteful number, since it uses less digits than its factorization.

44075640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 44075640 is about 6638.9487119573. The cubic root of 44075640 is about 353.2370173770.

The spelling of 44075640 in words is "forty-four million, seventy-five thousand, six hundred forty".