44864840 has 16 divisors (see below), whose sum is σ = 100945980. Its totient is φ = 17945920.

The previous prime is 44864821. The next prime is 44864879. The reversal of 44864840 is 4846844.

It can be written as a sum of positive squares in 2 ways, for example, as 42954916 + 1909924 = 6554^2 + 1382^2 .

It is a junction number, because it is equal to n+sod(n) for n = 44864794 and 44864803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560771 + ... + 560850.

Almost surely, 2^44864840 is an apocalyptic number.

44864840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44864840 is an abundant number, since it is smaller than the sum of its proper divisors (56081140).

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

44864840 is a wasteful number, since it uses less digits than its factorization.

44864840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121632 (or 1121628 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 38.

The square root of 44864840 is about 6698.1221248944. The cubic root of 44864840 is about 355.3328624318.

The spelling of 44864840 in words is "forty-four million, eight hundred sixty-four thousand, eight hundred forty".