40657233 has 8 divisors (see below), whose sum is σ = 54340096. Its totient is φ = 27039600.

The previous prime is 40657219. The next prime is 40657237. The reversal of 40657233 is 33275604.

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

It is not a de Polignac number, because 40657233 - 2⁸ = 40656977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40657233.

It is not an unprimeable number, because it can be changed into a prime (40657237) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 14833 + ... + 17358.

It is an arithmetic number, because the mean of its divisors is an integer number (6792512).

Almost surely, 2^40657233 is an apocalyptic number.

It is an amenable number.

40657233 is a deficient number, since it is larger than the sum of its proper divisors (13682863).

40657233 is a wasteful number, since it uses less digits than its factorization.

40657233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32615.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 40657233 is about 6376.3024551851. The cubic root of 40657233 is about 343.8581108766.

The spelling of 40657233 in words is "forty million, six hundred fifty-seven thousand, two hundred thirty-three".