44040000 has 140 divisors (see below), whose sum is σ = 146003264. Its totient is φ = 11712000.

The previous prime is 44039999. The next prime is 44040001. The reversal of 44040000 is 4044.

It is an interprime number because it is at equal distance from previous prime (44039999) and next prime (44040001).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44040001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 119817 + ... + 120183.

Almost surely, 2^44040000 is an apocalyptic number.

44040000 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 44040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73001632).

44040000 is an abundant number, since it is smaller than the sum of its proper divisors (101963264).

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

44040000 is an equidigital number, since it uses as much as digits as its factorization.

44040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 44040000 is about 6636.2640092148. The cubic root of 44040000 is about 353.1417813833.

Adding to 44040000 its reverse (4044), we get a palindrome (44044044).

The spelling of 44040000 in words is "forty-four million, forty thousand", and thus it is an eban number.