40660928 has 112 divisors (see below), whose sum is σ = 103778304. Its totient is φ = 15344640.

The previous prime is 40660913. The next prime is 40660937. The reversal of 40660928 is 82906604.

40660928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×40660928² = 3306622131642368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182225 + ... + 182447.

It is an arithmetic number, because the mean of its divisors is an integer number (926592).

Almost surely, 2^40660928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40660928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51889152).

40660928 is an abundant number, since it is smaller than the sum of its proper divisors (63117376).

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

40660928 is a wasteful number, since it uses less digits than its factorization.

40660928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 40660928 is about 6376.5921933271. The cubic root of 40660928 is about 343.8685273687.

The spelling of 40660928 in words is "forty million, six hundred sixty thousand, nine hundred twenty-eight".