40120213 has 8 divisors (see below), whose sum is σ = 46045440. Its totient is φ = 34243440.

The previous prime is 40120139. The next prime is 40120217. The reversal of 40120213 is 31202104.

40120213 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 not a de Polignac number, because 40120213 - 2¹⁷ = 39989141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40120193 and 40120202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40120217) 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, 10318 + ... + 13663.

It is an arithmetic number, because the mean of its divisors is an integer number (5755680).

Almost surely, 2^40120213 is an apocalyptic number.

It is an amenable number.

40120213 is a deficient number, since it is larger than the sum of its proper divisors (5925227).

40120213 is a wasteful number, since it uses less digits than its factorization.

40120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24227.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40120213 is about 6334.0518627495. The cubic root of 40120213 is about 342.3374489277.

Adding to 40120213 its reverse (31202104), we get a palindrome (71322317).

The spelling of 40120213 in words is "forty million, one hundred twenty thousand, two hundred thirteen".