40668930 has 96 divisors (see below), whose sum is σ = 117936000. Its totient is φ = 9662976.

The previous prime is 40668923. The next prime is 40668937. The reversal of 40668930 is 3986604.

It is an interprime number because it is at equal distance from previous prime (40668923) and next prime (40668937).

It is not an unprimeable number, because it can be changed into a prime (40668937) 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 47 ways as a sum of consecutive naturals, for example, 28371 + ... + 29769.

It is an arithmetic number, because the mean of its divisors is an integer number (1228500).

Almost surely, 2^40668930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40668930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58968000).

40668930 is an abundant number, since it is smaller than the sum of its proper divisors (77267070).

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

40668930 is a wasteful number, since it uses less digits than its factorization.

40668930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 40668930 is about 6377.2196135934. The cubic root of 40668930 is about 343.8910834654.

It can be divided in two parts, 4066 and 8930, that added together give a square (12996 = 114²).

The spelling of 40668930 in words is "forty million, six hundred sixty-eight thousand, nine hundred thirty".