40920928 has 12 divisors (see below), whose sum is σ = 80563140. Its totient is φ = 20460448.

The previous prime is 40920923. The next prime is 40920931. The reversal of 40920928 is 82902904.

It is a junction number, because it is equal to n+sod(n) for n = 40920893 and 40920902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40920923) 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, 639358 + ... + 639421.

It is an arithmetic number, because the mean of its divisors is an integer number (6713595).

Almost surely, 2^40920928 is an apocalyptic number.

It is an amenable number.

40920928 is a deficient number, since it is larger than the sum of its proper divisors (39642212).

40920928 is a wasteful number, since it uses less digits than its factorization.

40920928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278789 (or 1278781 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 40920928 is about 6396.9467717029. The cubic root of 40920928 is about 344.5999086702.

The spelling of 40920928 in words is "forty million, nine hundred twenty thousand, nine hundred twenty-eight".