44423040 has 128 divisors (see below), whose sum is σ = 150037920. Its totient is φ = 11141120.

The previous prime is 44423039. The next prime is 44423053. The reversal of 44423040 is 4032444.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 44422998 and 44423016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31960 + ... + 33320.

Almost surely, 2^44423040 is an apocalyptic number.

44423040 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 44423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75018960).

44423040 is an abundant number, since it is smaller than the sum of its proper divisors (105614880).

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

44423040 is a wasteful number, since it uses less digits than its factorization.

44423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400 (or 1388 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 44423040 is about 6665.0611400046. The cubic root of 44423040 is about 354.1626498891.

Adding to 44423040 its reverse (4032444), we get a palindrome (48455484).

The spelling of 44423040 in words is "forty-four million, four hundred twenty-three thousand, forty".