40666744 has 8 divisors (see below), whose sum is σ = 76250160. Its totient is φ = 20333368.

The previous prime is 40666739. The next prime is 40666781. The reversal of 40666744 is 44766604.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2541664 + ... + 2541679.

It is an arithmetic number, because the mean of its divisors is an integer number (9531270).

Almost surely, 2^40666744 is an apocalyptic number.

It is an amenable number.

40666744 is a deficient number, since it is larger than the sum of its proper divisors (35583416).

40666744 is a wasteful number, since it uses less digits than its factorization.

40666744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5083349 (or 5083345 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 40666744 is about 6377.0482199839. The cubic root of 40666744 is about 343.8849218462.

The spelling of 40666744 in words is "forty million, six hundred sixty-six thousand, seven hundred forty-four".