40340164 has 12 divisors (see below), whose sum is σ = 71649424. Its totient is φ = 19868904.

The previous prime is 40340159. The next prime is 40340191. The reversal of 40340164 is 46104304.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74994 + ... + 75529.

Almost surely, 2^40340164 is an apocalyptic number.

It is an amenable number.

40340164 is a deficient number, since it is larger than the sum of its proper divisors (31309260).

40340164 is a wasteful number, since it uses less digits than its factorization.

40340164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150594 (or 150592 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 40340164 is about 6351.3907138516. The cubic root of 40340164 is about 342.9619078983.

Adding to 40340164 its reverse (46104304), we get a palindrome (86444468).

It can be divided in two parts, 40340 and 164, that added together give a palindrome (40504).

The spelling of 40340164 in words is "forty million, three hundred forty thousand, one hundred sixty-four".