40448228 has 6 divisors (see below), whose sum is σ = 70784406. Its totient is φ = 20224112.

The previous prime is 40448227. The next prime is 40448257. The reversal of 40448228 is 82284404.

It can be written as a sum of positive squares in only one way, i.e., 35617024 + 4831204 = 5968^2 + 2198^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40448194 and 40448203.

It is not an unprimeable number, because it can be changed into a prime (40448227) 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 as a sum of consecutive naturals, namely, 5056025 + ... + 5056032.

It is an arithmetic number, because the mean of its divisors is an integer number (11797401).

Almost surely, 2^40448228 is an apocalyptic number.

It is an amenable number.

40448228 is a deficient number, since it is larger than the sum of its proper divisors (30336178).

40448228 is a wasteful number, since it uses less digits than its factorization.

40448228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10112061 (or 10112059 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 40448228 is about 6359.8921374501. The cubic root of 40448228 is about 343.2678791448.

The spelling of 40448228 in words is "forty million, four hundred forty-eight thousand, two hundred twenty-eight".