44209740 has 48 divisors (see below), whose sum is σ = 124098912. Its totient is φ = 11759616.

The previous prime is 44209729. The next prime is 44209747. The reversal of 44209740 is 4790244.

It is a super-2 number, since 2×44209740² = 3909002221735200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 44209698 and 44209707.

It is not an unprimeable number, because it can be changed into a prime (44209747) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33982 + ... + 35258.

It is an arithmetic number, because the mean of its divisors is an integer number (2585394).

Almost surely, 2^44209740 is an apocalyptic number.

It is an amenable number.

44209740 is an abundant number, since it is smaller than the sum of its proper divisors (79889172).

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

44209740 is a wasteful number, since it uses less digits than its factorization.

44209740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866 (or 1864 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 44209740 is about 6649.0405322873. The cubic root of 44209740 is about 353.5948955229.

Adding to 44209740 its reverse (4790244), we get a palindrome (48999984).

The spelling of 44209740 in words is "forty-four million, two hundred nine thousand, seven hundred forty".