40497242 has 8 divisors (see below), whose sum is σ = 60856596. Its totient is φ = 20211712.

The previous prime is 40497241. The next prime is 40497251. The reversal of 40497242 is 24279404.

40497242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 35652841 + 4844401 = 5971^2 + 2201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40497199 and 40497208.

It is not an unprimeable number, because it can be changed into a prime (40497241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17063 + ... + 19290.

Almost surely, 2^40497242 is an apocalyptic number.

40497242 is a deficient number, since it is larger than the sum of its proper divisors (20359354).

40497242 is a wasteful number, since it uses less digits than its factorization.

40497242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36912.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 40497242 is about 6363.7443380450. The cubic root of 40497242 is about 343.4064772264.

The spelling of 40497242 in words is "forty million, four hundred ninety-seven thousand, two hundred forty-two".