40099346 has 12 divisors (see below), whose sum is σ = 69969438. Its totient is φ = 17185392.

The previous prime is 40099343. The next prime is 40099357. The reversal of 40099346 is 64399004.

It is a happy number.

40099346 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., 34987225 + 5112121 = 5915^2 + 2261^2 .

It is not an unprimeable number, because it can be changed into a prime (40099343) 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, 204491 + ... + 204686.

Almost surely, 2^40099346 is an apocalyptic number.

40099346 is a deficient number, since it is larger than the sum of its proper divisors (29870092).

40099346 is a wasteful number, since it uses less digits than its factorization.

40099346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409193 (or 409186 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 40099346 is about 6332.4044406529. The cubic root of 40099346 is about 342.2780873752.

The spelling of 40099346 in words is "forty million, ninety-nine thousand, three hundred forty-six".