40950013 has 4 divisors (see below), whose sum is σ = 44100028. Its totient is φ = 37800000.

The previous prime is 40949999. The next prime is 40950023. The reversal of 40950013 is 31005904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21040569 + 19909444 = 4587^2 + 4462^2 .

It is a cyclic number.

It is not a de Polignac number, because 40950013 - 2⁵ = 40949981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40950023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1574988 + ... + 1575013.

It is an arithmetic number, because the mean of its divisors is an integer number (11025007).

Almost surely, 2^40950013 is an apocalyptic number.

It is an amenable number.

40950013 is a deficient number, since it is larger than the sum of its proper divisors (3150015).

40950013 is a wasteful number, since it uses less digits than its factorization.

40950013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150014.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 40950013 is about 6399.2197180594. The cubic root of 40950013 is about 344.6815320611.

Adding to 40950013 its reverse (31005904), we get a palindrome (71955917).

The spelling of 40950013 in words is "forty million, nine hundred fifty thousand, thirteen".