40645166 has 8 divisors (see below), whose sum is σ = 62615640. Its totient is φ = 19773288.

The previous prime is 40645133. The next prime is 40645217. The reversal of 40645166 is 66154604.

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

It is a congruent number.

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, 274556 + ... + 274703.

It is an arithmetic number, because the mean of its divisors is an integer number (7826955).

Almost surely, 2^40645166 is an apocalyptic number.

40645166 is a deficient number, since it is larger than the sum of its proper divisors (21970474).

40645166 is a wasteful number, since it uses less digits than its factorization.

40645166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549298.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 40645166 is about 6375.3561469145. The cubic root of 40645166 is about 343.8240886696.

The spelling of 40645166 in words is "forty million, six hundred forty-five thousand, one hundred sixty-six".