44391740 has 24 divisors (see below), whose sum is σ = 94983840. Its totient is φ = 17421248.

The previous prime is 44391727. The next prime is 44391761. The reversal of 44391740 is 4719344.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 44391697 and 44391706.

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, 19880 + ... + 21999.

It is an arithmetic number, because the mean of its divisors is an integer number (3957660).

Almost surely, 2^44391740 is an apocalyptic number.

It is an amenable number.

44391740 is an abundant number, since it is smaller than the sum of its proper divisors (50592100).

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

44391740 is a wasteful number, since it uses less digits than its factorization.

44391740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41941 (or 41939 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 44391740 is about 6662.7126607711. The cubic root of 44391740 is about 354.0794506042.

The spelling of 44391740 in words is "forty-four million, three hundred ninety-one thousand, seven hundred forty".