40014155 has 16 divisors (see below), whose sum is σ = 50246784. Its totient is φ = 30558720.

The previous prime is 40014151. The next prime is 40014157. The reversal of 40014155 is 55141004.

It is not a de Polignac number, because 40014155 - 2² = 40014151 is a prime.

It is a super-2 number, since 2×40014155² = 3202265200728050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40014151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7559 + ... + 11711.

It is an arithmetic number, because the mean of its divisors is an integer number (3140424).

Almost surely, 2^40014155 is an apocalyptic number.

40014155 is a deficient number, since it is larger than the sum of its proper divisors (10232629).

40014155 is a wasteful number, since it uses less digits than its factorization.

40014155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4246.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 40014155 is about 6325.6742723602. The cubic root of 40014155 is about 342.0355257602.

Adding to 40014155 its reverse (55141004), we get a palindrome (95155159).

The spelling of 40014155 in words is "forty million, fourteen thousand, one hundred fifty-five".