40961013 has 8 divisors (see below), whose sum is σ = 56376576. Its totient is φ = 26426400.

The previous prime is 40960943. The next prime is 40961023. The reversal of 40961013 is 31016904.

40961013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-40961013 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40961023) 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, 220128 + ... + 220313.

It is an arithmetic number, because the mean of its divisors is an integer number (7047072).

Almost surely, 2^40961013 is an apocalyptic number.

It is an amenable number.

40961013 is a deficient number, since it is larger than the sum of its proper divisors (15415563).

40961013 is a wasteful number, since it uses less digits than its factorization.

40961013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440475.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 40961013 is about 6400.0791401357. The cubic root of 40961013 is about 344.7123921035.

Adding to 40961013 its reverse (31016904), we get a palindrome (71977917).

The spelling of 40961013 in words is "forty million, nine hundred sixty-one thousand, thirteen".