40661350 has 12 divisors (see below), whose sum is σ = 75630204. Its totient is φ = 16264520.

The previous prime is 40661329. The next prime is 40661351. The reversal of 40661350 is 5316604.

40661350 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40661351) 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, 406564 + ... + 406663.

It is an arithmetic number, because the mean of its divisors is an integer number (6302517).

Almost surely, 2^40661350 is an apocalyptic number.

40661350 is a deficient number, since it is larger than the sum of its proper divisors (34968854).

40661350 is a wasteful number, since it uses less digits than its factorization.

40661350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813239 (or 813234 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40661350 is about 6376.6252830161. The cubic root of 40661350 is about 343.8697169793.

Adding to 40661350 its reverse (5316604), we get a palindrome (45977954).

The spelling of 40661350 in words is "forty million, six hundred sixty-one thousand, three hundred fifty".