40681516 has 12 divisors (see below), whose sum is σ = 71255800. Its totient is φ = 20322720.

The previous prime is 40681499. The next prime is 40681559. The reversal of 40681516 is 61518604.

It is a zygodrome in base 3.

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, 1435 + ... + 9133.

Almost surely, 2^40681516 is an apocalyptic number.

It is an amenable number.

40681516 is a deficient number, since it is larger than the sum of its proper divisors (30574284).

40681516 is a wasteful number, since it uses less digits than its factorization.

40681516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9024 (or 9022 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 40681516 is about 6378.2063309366. The cubic root of 40681516 is about 343.9265549892.

The spelling of 40681516 in words is "forty million, six hundred eighty-one thousand, five hundred sixteen".