40491296 has 12 divisors (see below), whose sum is σ = 79717302. Its totient is φ = 20245632.

The previous prime is 40491289. The next prime is 40491317. The reversal of 40491296 is 69219404.

It can be written as a sum of positive squares in only one way, i.e., 37994896 + 2496400 = 6164^2 + 1580^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 632645 + ... + 632708.

Almost surely, 2^40491296 is an apocalyptic number.

It is an amenable number.

40491296 is a deficient number, since it is larger than the sum of its proper divisors (39226006).

40491296 is a wasteful number, since it uses less digits than its factorization.

40491296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265363 (or 1265355 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 40491296 is about 6363.2771431079. The cubic root of 40491296 is about 343.3896695398.

The spelling of 40491296 in words is "forty million, four hundred ninety-one thousand, two hundred ninety-six".