40031154 has 24 divisors (see below), whose sum is σ = 87506172. Its totient is φ = 13224960.

The previous prime is 40031113. The next prime is 40031171. The reversal of 40031154 is 45113004.

It is a happy number.

40031154 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 2 ways, for example, as 40030929 + 225 = 6327^2 + 15^2 .

It is a super-3 number, since 3×40031154³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7807 + ... + 11874.

Almost surely, 2^40031154 is an apocalyptic number.

40031154 is an abundant number, since it is smaller than the sum of its proper divisors (47475018).

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

40031154 is a wasteful number, since it uses less digits than its factorization.

40031154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19802 (or 19799 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40031154 is about 6327.0177809138. The cubic root of 40031154 is about 342.0839539456.

Adding to 40031154 its reverse (45113004), we get a palindrome (85144158).

The spelling of 40031154 in words is "forty million, thirty-one thousand, one hundred fifty-four".