40736684 has 18 divisors (see below), whose sum is σ = 75241404. Its totient is φ = 19295640.

The previous prime is 40736659. The next prime is 40736699. The reversal of 40736684 is 48663704.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12662 + ... + 15549.

It is an arithmetic number, because the mean of its divisors is an integer number (4180078).

Almost surely, 2^40736684 is an apocalyptic number.

It is an amenable number.

40736684 is a deficient number, since it is larger than the sum of its proper divisors (34504720).

40736684 is a wasteful number, since it uses less digits than its factorization.

40736684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28253 (or 28232 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 40736684 is about 6382.5295925675. The cubic root of 40736684 is about 344.0819504593.

The spelling of 40736684 in words is "forty million, seven hundred thirty-six thousand, six hundred eighty-four".