40128848 has 10 divisors (see below), whose sum is σ = 77749674. Its totient is φ = 20064416.

The previous prime is 40128841. The next prime is 40128853. The reversal of 40128848 is 84882104.

It can be written as a sum of positive squares in only one way, i.e., 40043584 + 85264 = 6328^2 + 292^2 .

It is a super-2 number, since 2×40128848² = 3220648883614208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40128841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1254011 + ... + 1254042.

Almost surely, 2^40128848 is an apocalyptic number.

It is an amenable number.

40128848 is a deficient number, since it is larger than the sum of its proper divisors (37620826).

40128848 is a wasteful number, since it uses less digits than its factorization.

40128848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508061 (or 2508055 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 40128848 is about 6334.7334592704. The cubic root of 40128848 is about 342.3620073867.

The spelling of 40128848 in words is "forty million, one hundred twenty-eight thousand, eight hundred forty-eight".