40643614 has 16 divisors (see below), whose sum is σ = 67100400. Its totient is φ = 18309760.

The previous prime is 40643609. The next prime is 40643621. The reversal of 40643614 is 41634604.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5689 + ... + 10660.

It is an arithmetic number, because the mean of its divisors is an integer number (4193775).

Almost surely, 2^40643614 is an apocalyptic number.

40643614 is a deficient number, since it is larger than the sum of its proper divisors (26456786).

40643614 is a wasteful number, since it uses less digits than its factorization.

40643614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16475.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 40643614 is about 6375.2344270623. The cubic root of 40643614 is about 343.8197124068.

The spelling of 40643614 in words is "forty million, six hundred forty-three thousand, six hundred fourteen".