44222240 has 24 divisors (see below), whose sum is σ = 104475420. Its totient is φ = 17688832.

The previous prime is 44222239. The next prime is 44222249. The reversal of 44222240 is 4222244.

It can be written as a sum of positive squares in 2 ways, for example, as 36626704 + 7595536 = 6052^2 + 2756^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (44222249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138035 + ... + 138354.

Almost surely, 2^44222240 is an apocalyptic number.

44222240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44222240 is an abundant number, since it is smaller than the sum of its proper divisors (60253180).

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

44222240 is a wasteful number, since it uses less digits than its factorization.

44222240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276404 (or 276396 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 44222240 is about 6649.9804510991. The cubic root of 44222240 is about 353.6282178910.

Adding to 44222240 its reverse (4222244), we get a palindrome (48444484).

The spelling of 44222240 in words is "forty-four million, two hundred twenty-two thousand, two hundred forty".