40590306 has 24 divisors (see below), whose sum is σ = 88111920. Its totient is φ = 13504536.

The previous prime is 40590301. The next prime is 40590307. The reversal of 40590306 is 60309504.

It is a happy number.

40590306 is a `hidden beast` number, since 40 + 590 + 30 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40590306.

It is not an unprimeable number, because it can be changed into a prime (40590301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9321 + ... + 12963.

It is an arithmetic number, because the mean of its divisors is an integer number (3671330).

Almost surely, 2^40590306 is an apocalyptic number.

40590306 is an abundant number, since it is smaller than the sum of its proper divisors (47521614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40590306 is a wasteful number, since it uses less digits than its factorization.

40590306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270 (or 4267 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 40590306 is about 6371.0521893954. The cubic root of 40590306 is about 343.6693291248.

The spelling of 40590306 in words is "forty million, five hundred ninety thousand, three hundred six".