40988913 has 32 divisors (see below), whose sum is σ = 65372160. Its totient is φ = 22351680.

The previous prime is 40988891. The next prime is 40988917. The reversal of 40988913 is 31988904.

40988913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40988913 - 2⁵ = 40988881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40988917) 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 31 ways as a sum of consecutive naturals, for example, 51031 + ... + 51827.

It is an arithmetic number, because the mean of its divisors is an integer number (2042880).

Almost surely, 2^40988913 is an apocalyptic number.

It is an amenable number.

40988913 is a deficient number, since it is larger than the sum of its proper divisors (24383247).

40988913 is a wasteful number, since it uses less digits than its factorization.

40988913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 40988913 is about 6402.2584296481. The cubic root of 40988913 is about 344.7906396228.

Subtracting from 40988913 its reverse (31988904), we obtain a palindrome (9000009).

The spelling of 40988913 in words is "forty million, nine hundred eighty-eight thousand, nine hundred thirteen".