44985840 has 40 divisors (see below), whose sum is σ = 139456848. Its totient is φ = 11996160.

The previous prime is 44985803. The next prime is 44985841. The reversal of 44985840 is 4858944.

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

It is a junction number, because it is equal to n+sod(n) for n = 44985792 and 44985801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44985841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93481 + ... + 93960.

Almost surely, 2^44985840 is an apocalyptic number.

44985840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44985840 is an abundant number, since it is smaller than the sum of its proper divisors (94471008).

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

44985840 is a wasteful number, since it uses less digits than its factorization.

44985840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187457 (or 187451 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 44985840 is about 6707.1484253742. The cubic root of 44985840 is about 355.6520186765.

The spelling of 44985840 in words is "forty-four million, nine hundred eighty-five thousand, eight hundred forty".