40039092 has 18 divisors (see below), whose sum is σ = 101210018. Its totient is φ = 13346352.

The previous prime is 40039049. The next prime is 40039093. The reversal of 40039092 is 29093004.

40039092 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 only one way, i.e., 23097636 + 16941456 = 4806^2 + 4116^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40039093) 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, 556063 + ... + 556134.

Almost surely, 2^40039092 is an apocalyptic number.

It is an amenable number.

40039092 is an abundant number, since it is smaller than the sum of its proper divisors (61170926).

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

40039092 is a wasteful number, since it uses less digits than its factorization.

40039092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112207 (or 1112202 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 40039092 is about 6327.6450595779. The cubic root of 40039092 is about 342.1065636940.

The spelling of 40039092 in words is "forty million, thirty-nine thousand, ninety-two".