40067736 has 16 divisors (see below), whose sum is σ = 100169400. Its totient is φ = 13355904.

The previous prime is 40067719. The next prime is 40067749. The reversal of 40067736 is 63776004.

It is a junction number, because it is equal to n+sod(n) for n = 40067697 and 40067706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834721 + ... + 834768.

Almost surely, 2^40067736 is an apocalyptic number.

It is an amenable number.

40067736 is an abundant number, since it is smaller than the sum of its proper divisors (60101664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40067736 is a wasteful number, since it uses less digits than its factorization.

40067736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669498 (or 1669494 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 40067736 is about 6329.9080562043. The cubic root of 40067736 is about 342.1881253549.

The spelling of 40067736 in words is "forty million, sixty-seven thousand, seven hundred thirty-six".