13213642 has 32 divisors (see below), whose sum is σ = 22353408. Its totient is φ = 5818176.

The previous prime is 13213579. The next prime is 13213667. The reversal of 13213642 is 24631231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59143 + ... + 59365.

It is an arithmetic number, because the mean of its divisors is an integer number (698544).

Almost surely, 2^13213642 is an apocalyptic number.

13213642 is a deficient number, since it is larger than the sum of its proper divisors (9139766).

13213642 is a wasteful number, since it uses less digits than its factorization.

13213642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334.

The product of its digits is 864, while the sum is 22.

The square root of 13213642 is about 3635.0573585571. The cubic root of 13213642 is about 236.4145376389.

Adding to 13213642 its reverse (24631231), we get a palindrome (37844873).

The spelling of 13213642 in words is "thirteen million, two hundred thirteen thousand, six hundred forty-two".