40038154 has 16 divisors (see below), whose sum is σ = 66908520. Its totient is φ = 17841600.

The previous prime is 40038151. The next prime is 40038169. The reversal of 40038154 is 45183004.

40038154 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 4 ways, for example, as 34539129 + 5499025 = 5877^2 + 2345^2 .

It is not an unprimeable number, because it can be changed into a prime (40038151) 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 7 ways as a sum of consecutive naturals, for example, 25797 + ... + 27304.

Almost surely, 2^40038154 is an apocalyptic number.

40038154 is a deficient number, since it is larger than the sum of its proper divisors (26870366).

40038154 is a wasteful number, since it uses less digits than its factorization.

40038154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53145.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40038154 is about 6327.5709399421. The cubic root of 40038154 is about 342.1038921511.

The spelling of 40038154 in words is "forty million, thirty-eight thousand, one hundred fifty-four".