40605328 has 20 divisors (see below), whose sum is σ = 78795180. Its totient is φ = 20271104.

The previous prime is 40605311. The next prime is 40605347. The reversal of 40605328 is 82350604.

It can be written as a sum of positive squares in 2 ways, for example, as 39087504 + 1517824 = 6252^2 + 1232^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40605296 and 40605305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11376 + ... + 14512.

It is an arithmetic number, because the mean of its divisors is an integer number (3939759).

Almost surely, 2^40605328 is an apocalyptic number.

It is an amenable number.

40605328 is a deficient number, since it is larger than the sum of its proper divisors (38189852).

40605328 is a wasteful number, since it uses less digits than its factorization.

40605328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954 (or 3948 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40605328 is about 6372.2310064843. The cubic root of 40605328 is about 343.7117199026.

The spelling of 40605328 in words is "forty million, six hundred five thousand, three hundred twenty-eight".