40664170 has 16 divisors (see below), whose sum is σ = 77501448. Its totient is φ = 15308800.

The previous prime is 40664101. The next prime is 40664179. The reversal of 40664170 is 7146604.

It can be written as a sum of positive squares in 4 ways, for example, as 30173049 + 10491121 = 5493^2 + 3239^2 .

It is not an unprimeable number, because it can be changed into a prime (40664179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119431 + ... + 119770.

Almost surely, 2^40664170 is an apocalyptic number.

40664170 is a deficient number, since it is larger than the sum of its proper divisors (36837278).

40664170 is a wasteful number, since it uses less digits than its factorization.

40664170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239225.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 40664170 is about 6376.8463992792. The cubic root of 40664170 is about 343.8776662988.

The spelling of 40664170 in words is "forty million, six hundred sixty-four thousand, one hundred seventy".