40687072 has 12 divisors (see below), whose sum is σ = 80102736. Its totient is φ = 20343520.

The previous prime is 40687067. The next prime is 40687079. The reversal of 40687072 is 27078604.

40687072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40687079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635704 + ... + 635767.

It is an arithmetic number, because the mean of its divisors is an integer number (6675228).

Almost surely, 2^40687072 is an apocalyptic number.

It is an amenable number.

40687072 is a deficient number, since it is larger than the sum of its proper divisors (39415664).

40687072 is a wasteful number, since it uses less digits than its factorization.

40687072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271481 (or 1271473 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 40687072 is about 6378.6418617132. The cubic root of 40687072 is about 343.9422113130.

It can be divided in two parts, 406 and 87072, that added together give a palindrome (87478).

The spelling of 40687072 in words is "forty million, six hundred eighty-seven thousand, seventy-two".