44491400 has 48 divisors (see below), whose sum is σ = 104206500. Its totient is φ = 17665280.

The previous prime is 44491373. The next prime is 44491439. The reversal of 44491400 is 419444.

It can be written as a sum of positive squares in 6 ways, for example, as 15697444 + 28793956 = 3962^2 + 5366^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 44491400.

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 11 ways as a sum of consecutive naturals, for example, 29054 + ... + 30546.

Almost surely, 2^44491400 is an apocalyptic number.

44491400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44491400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52103250).

44491400 is an abundant number, since it is smaller than the sum of its proper divisors (59715100).

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

44491400 is a wasteful number, since it uses less digits than its factorization.

44491400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 44491400 is about 6670.1874036642. The cubic root of 44491400 is about 354.3442234646.

The spelling of 44491400 in words is "forty-four million, four hundred ninety-one thousand, four hundred".