40664410 has 8 divisors (see below), whose sum is σ = 73195956. Its totient is φ = 16265760.

The previous prime is 40664401. The next prime is 40664453. The reversal of 40664410 is 1446604.

It can be written as a sum of positive squares in 2 ways, for example, as 40436881 + 227529 = 6359^2 + 477^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2033211 + ... + 2033230.

Almost surely, 2^40664410 is an apocalyptic number.

40664410 is a deficient number, since it is larger than the sum of its proper divisors (32531546).

40664410 is a wasteful number, since it uses less digits than its factorization.

40664410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066448.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 40664410 is about 6376.8652173305. The cubic root of 40664410 is about 343.8783428196.

The spelling of 40664410 in words is "forty million, six hundred sixty-four thousand, four hundred ten".