40645068 has 12 divisors (see below), whose sum is σ = 94838520. Its totient is φ = 13548352.

The previous prime is 40645067. The next prime is 40645069. The reversal of 40645068 is 86054604.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40645067) and next prime (40645069).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (40645067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693533 + ... + 1693556.

It is an arithmetic number, because the mean of its divisors is an integer number (7903210).

Almost surely, 2^40645068 is an apocalyptic number.

It is an amenable number.

40645068 is an abundant number, since it is smaller than the sum of its proper divisors (54193452).

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

40645068 is a wasteful number, since it uses less digits than its factorization.

40645068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387096 (or 3387094 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 40645068 is about 6375.3484610647. The cubic root of 40645068 is about 343.8238123367.

The spelling of 40645068 in words is "forty million, six hundred forty-five thousand, sixty-eight".