40780328 has 16 divisors (see below), whose sum is σ = 77760000. Its totient is φ = 20044336.

The previous prime is 40780309. The next prime is 40780343. The reversal of 40780328 is 82308704.

It is a junction number, because it is equal to n+sod(n) for n = 40780294 and 40780303.

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, 42728 + ... + 43671.

It is an arithmetic number, because the mean of its divisors is an integer number (4860000).

Almost surely, 2^40780328 is an apocalyptic number.

It is an amenable number.

40780328 is a deficient number, since it is larger than the sum of its proper divisors (36979672).

40780328 is a wasteful number, since it uses less digits than its factorization.

40780328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86464 (or 86460 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 40780328 is about 6385.9476978754. The cubic root of 40780328 is about 344.2047861233.

The spelling of 40780328 in words is "forty million, seven hundred eighty thousand, three hundred twenty-eight".