40216155 has 16 divisors (see below), whose sum is σ = 73538304. Its totient is φ = 18384480.

The previous prime is 40216133. The next prime is 40216157. The reversal of 40216155 is 55161204.

It is not a de Polignac number, because 40216155 - 2⁵ = 40216123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40216157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191401 + ... + 191610.

It is an arithmetic number, because the mean of its divisors is an integer number (4596144).

Almost surely, 2^40216155 is an apocalyptic number.

40216155 is a deficient number, since it is larger than the sum of its proper divisors (33322149).

40216155 is a wasteful number, since it uses less digits than its factorization.

40216155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383026.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 40216155 is about 6341.6208495936. The cubic root of 40216155 is about 342.6101160841.

Adding to 40216155 its reverse (55161204), we get a palindrome (95377359).

The spelling of 40216155 in words is "forty million, two hundred sixteen thousand, one hundred fifty-five".