40550392 has 16 divisors (see below), whose sum is σ = 76325040. Its totient is φ = 20197056.

The previous prime is 40550339. The next prime is 40550399. The reversal of 40550392 is 29305504.

It is a self number, because there is not a number n which added to its sum of digits gives 40550392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40550399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7533 + ... + 11740.

It is an arithmetic number, because the mean of its divisors is an integer number (4770315).

Almost surely, 2^40550392 is an apocalyptic number.

It is an amenable number.

40550392 is a deficient number, since it is larger than the sum of its proper divisors (35774648).

40550392 is a wasteful number, since it uses less digits than its factorization.

40550392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19542 (or 19538 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 40550392 is about 6367.9189693337. The cubic root of 40550392 is about 343.5566444501.

Adding to 40550392 its reverse (29305504), we get a palindrome (69855896).

The spelling of 40550392 in words is "forty million, five hundred fifty thousand, three hundred ninety-two".