213440626 has 16 divisors (see below), whose sum is σ = 371053440. Its totient is φ = 90185760.

The previous prime is 213440603. The next prime is 213440641. The reversal of 213440626 is 626044312.

213440626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213440594 and 213440603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106371 + ... + 108358.

It is an arithmetic number, because the mean of its divisors is an integer number (23190840).

Almost surely, 2^213440626 is an apocalyptic number.

213440626 is a deficient number, since it is larger than the sum of its proper divisors (157612814).

213440626 is a wasteful number, since it uses less digits than its factorization.

213440626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214809.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 213440626 is about 14609.6073184737. The cubic root of 213440626 is about 597.6207873078.

Adding to 213440626 its reverse (626044312), we get a palindrome (839484938).

The spelling of 213440626 in words is "two hundred thirteen million, four hundred forty thousand, six hundred twenty-six".