40440350 has 24 divisors (see below), whose sum is σ = 77057568. Its totient is φ = 15780800.

The previous prime is 40440349. The next prime is 40440359. The reversal of 40440350 is 5304404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40440359) 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 11 ways as a sum of consecutive naturals, for example, 7814 + ... + 11913.

It is an arithmetic number, because the mean of its divisors is an integer number (3210732).

Almost surely, 2^40440350 is an apocalyptic number.

40440350 is a deficient number, since it is larger than the sum of its proper divisors (36617218).

40440350 is a wasteful number, since it uses less digits than its factorization.

40440350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19780 (or 19775 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40440350 is about 6359.2727571634. The cubic root of 40440350 is about 343.2455918896.

Adding to 40440350 its reverse (5304404), we get a palindrome (45744754).

The spelling of 40440350 in words is "forty million, four hundred forty thousand, three hundred fifty".