40702666 has 8 divisors (see below), whose sum is σ = 61084260. Its totient is φ = 20341248.

The previous prime is 40702661. The next prime is 40702679. The reversal of 40702666 is 66620704.

It can be written as a sum of positive squares in 2 ways, for example, as 40691641 + 11025 = 6379^2 + 105^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40702661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1930 + ... + 9226.

Almost surely, 2^40702666 is an apocalyptic number.

40702666 is a deficient number, since it is larger than the sum of its proper divisors (20381594).

40702666 is a wasteful number, since it uses less digits than its factorization.

40702666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10088.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 40702666 is about 6379.8641051358. The cubic root of 40702666 is about 343.9861462331.

The spelling of 40702666 in words is "forty million, seven hundred two thousand, six hundred sixty-six".