44227640 has 16 divisors (see below), whose sum is σ = 99512280. Its totient is φ = 17691040.

The previous prime is 44227637. The next prime is 44227661. The reversal of 44227640 is 4672244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552806 + ... + 552885.

Almost surely, 2^44227640 is an apocalyptic number.

44227640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44227640 is an abundant number, since it is smaller than the sum of its proper divisors (55284640).

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

44227640 is a wasteful number, since it uses less digits than its factorization.

44227640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105702 (or 1105698 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 44227640 is about 6650.3864549363. The cubic root of 44227640 is about 353.6426112118.

Adding to 44227640 its reverse (4672244), we get a palindrome (48899884).

It can be divided in two parts, 442 and 27640, that added together give a palindrome (28082).

The spelling of 44227640 in words is "forty-four million, two hundred twenty-seven thousand, six hundred forty".