44445040 has 40 divisors (see below), whose sum is σ = 103863888. Its totient is φ = 17687040.

The previous prime is 44445031. The next prime is 44445059. The reversal of 44445040 is 4054444.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (25) 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 = 44444996 and 44445014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15564 + ... + 18196.

Almost surely, 2^44445040 is an apocalyptic number.

44445040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44445040 is an abundant number, since it is smaller than the sum of its proper divisors (59418848).

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

44445040 is a wasteful number, since it uses less digits than its factorization.

44445040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857 (or 2851 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 44445040 is about 6666.7113331837. The cubic root of 44445040 is about 354.2211052343.

Adding to 44445040 its reverse (4054444), we get a palindrome (48499484).

The spelling of 44445040 in words is "forty-four million, four hundred forty-five thousand, forty".