213040626 has 16 divisors (see below), whose sum is σ = 427852128. Its totient is φ = 70718400.

The previous prime is 213040603. The next prime is 213040627. The reversal of 213040626 is 626040312.

It is a junction number, because it is equal to n+sod(n) for n = 213040596 and 213040605.

It is not an unprimeable number, because it can be changed into a prime (213040627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72220 + ... + 75111.

It is an arithmetic number, because the mean of its divisors is an integer number (26740758).

Almost surely, 2^213040626 is an apocalyptic number.

213040626 is an abundant number, since it is smaller than the sum of its proper divisors (214811502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213040626 is a wasteful number, since it uses less digits than its factorization.

213040626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147577.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 213040626 is about 14595.9112767926. The cubic root of 213040626 is about 597.2472286197.

Adding to 213040626 its reverse (626040312), we get a palindrome (839080938).

The spelling of 213040626 in words is "two hundred thirteen million, forty thousand, six hundred twenty-six".