40645168 has 10 divisors (see below), whose sum is σ = 78750044. Its totient is φ = 20322576.

The previous prime is 40645133. The next prime is 40645217. The reversal of 40645168 is 86154604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270146 + ... + 1270177.

Almost surely, 2^40645168 is an apocalyptic number.

It is an amenable number.

40645168 is a deficient number, since it is larger than the sum of its proper divisors (38104876).

40645168 is a wasteful number, since it uses less digits than its factorization.

40645168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540331 (or 2540325 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 40645168 is about 6375.3563037684. The cubic root of 40645168 is about 343.8240943090.

It can be divided in two parts, 40645 and 168, that multiplied together give a triangular number (6828360 = T₃₆₉₅).

The spelling of 40645168 in words is "forty million, six hundred forty-five thousand, one hundred sixty-eight".