44949840 has 80 divisors (see below), whose sum is σ = 150073728. Its totient is φ = 11063808.

The previous prime is 44949829. The next prime is 44949841. The reversal of 44949840 is 4894944.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 44949792 and 44949801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44949841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4084 + ... + 10323.

Almost surely, 2^44949840 is an apocalyptic number.

44949840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44949840 is an abundant number, since it is smaller than the sum of its proper divisors (105123888).

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

44949840 is a wasteful number, since it uses less digits than its factorization.

44949840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14436 (or 14430 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 44949840 is about 6704.4641844073. The cubic root of 44949840 is about 355.5571229676.

The spelling of 44949840 in words is "forty-four million, nine hundred forty-nine thousand, eight hundred forty".