40285733 has 6 divisors (see below), whose sum is σ = 42795186. Its totient is φ = 37915712.

The previous prime is 40285723. The next prime is 40285753. The reversal of 40285733 is 33758204.

It is a happy number.

40285733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 10452289 + 29833444 = 3233^2 + 5462^2 .

It is not a de Polignac number, because 40285733 - 2⁸ = 40285477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40285733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40285723) 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 5 ways as a sum of consecutive naturals, for example, 69410 + ... + 69987.

It is an arithmetic number, because the mean of its divisors is an integer number (7132531).

Almost surely, 2^40285733 is an apocalyptic number.

It is an amenable number.

40285733 is a deficient number, since it is larger than the sum of its proper divisors (2509453).

40285733 is a wasteful number, since it uses less digits than its factorization.

40285733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139431 (or 139414 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 40285733 is about 6347.1043003877. The cubic root of 40285733 is about 342.8075855869.

The spelling of 40285733 in words is "forty million, two hundred eighty-five thousand, seven hundred thirty-three".