40689950 has 24 divisors (see below), whose sum is σ = 86495952. Its totient is φ = 13950720.

The previous prime is 40689937. The next prime is 40689953. The reversal of 40689950 is 5998604.

40689950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40689898 and 40689907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40689953) 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 11 ways as a sum of consecutive naturals, for example, 57779 + ... + 58478.

It is an arithmetic number, because the mean of its divisors is an integer number (3603998).

Almost surely, 2^40689950 is an apocalyptic number.

40689950 is an abundant number, since it is smaller than the sum of its proper divisors (45806002).

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

40689950 is a wasteful number, since it uses less digits than its factorization.

40689950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116276 (or 116271 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 40689950 is about 6378.8674543370. The cubic root of 40689950 is about 343.9503207058.

The spelling of 40689950 in words is "forty million, six hundred eighty-nine thousand, nine hundred fifty".