40736985 has 16 divisors (see below), whose sum is σ = 66769920. Its totient is φ = 21196160.

The previous prime is 40736977. The next prime is 40737017. The reversal of 40736985 is 58963704.

It is a happy number.

It is not a de Polignac number, because 40736985 - 2³ = 40736977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32505 + ... + 33734.

It is an arithmetic number, because the mean of its divisors is an integer number (4173120).

Almost surely, 2^40736985 is an apocalyptic number.

It is an amenable number.

40736985 is a deficient number, since it is larger than the sum of its proper divisors (26032935).

40736985 is a wasteful number, since it uses less digits than its factorization.

40736985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66288.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 40736985 is about 6382.5531725165. The cubic root of 40736985 is about 344.0827979216.

The spelling of 40736985 in words is "forty million, seven hundred thirty-six thousand, nine hundred eighty-five".