40078733 has 16 divisors (see below), whose sum is σ = 44286720. Its totient is φ = 36127296.

The previous prime is 40078729. The next prime is 40078781. The reversal of 40078733 is 33787004.

40078733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40078733 - 2² = 40078729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40078733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40078793) 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 in 15 ways as a sum of consecutive naturals, for example, 32435 + ... + 33647.

It is an arithmetic number, because the mean of its divisors is an integer number (2767920).

Almost surely, 2^40078733 is an apocalyptic number.

It is an amenable number.

40078733 is a deficient number, since it is larger than the sum of its proper divisors (4207987).

40078733 is a wasteful number, since it uses less digits than its factorization.

40078733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 40078733 is about 6330.7766506172. The cubic root of 40078733 is about 342.2194281683.

The spelling of 40078733 in words is "forty million, seventy-eight thousand, seven hundred thirty-three".