40665704 has 8 divisors (see below), whose sum is σ = 76248210. Its totient is φ = 20332848.

The previous prime is 40665697. The next prime is 40665721. The reversal of 40665704 is 40756604.

It can be written as a sum of positive squares in only one way, i.e., 40576900 + 88804 = 6370^2 + 298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2541599 + ... + 2541614.

Almost surely, 2^40665704 is an apocalyptic number.

It is an amenable number.

40665704 is a deficient number, since it is larger than the sum of its proper divisors (35582506).

40665704 is a wasteful number, since it uses less digits than its factorization.

40665704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5083219 (or 5083215 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 40665704 is about 6376.9666770338. The cubic root of 40665704 is about 343.8819903487.

The spelling of 40665704 in words is "forty million, six hundred sixty-five thousand, seven hundred four".