40494473 has 6 divisors (see below), whose sum is σ = 41195994. Its totient is φ = 39804704.

The previous prime is 40494451. The next prime is 40494479. The reversal of 40494473 is 37449404.

It is a happy number.

40494473 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 only one way, i.e., 36929929 + 3564544 = 6077^2 + 1888^2 .

It is not a de Polignac number, because 40494473 - 2⁶ = 40494409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40494479) 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 5 ways as a sum of consecutive naturals, for example, 2336 + ... + 9297.

It is an arithmetic number, because the mean of its divisors is an integer number (6865999).

Almost surely, 2^40494473 is an apocalyptic number.

It is an amenable number.

40494473 is a deficient number, since it is larger than the sum of its proper divisors (701521).

40494473 is an equidigital number, since it uses as much as digits as its factorization.

40494473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11751 (or 11692 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 40494473 is about 6363.5267737317. The cubic root of 40494473 is about 343.3986502390.

The spelling of 40494473 in words is "forty million, four hundred ninety-four thousand, four hundred seventy-three".