1324636642 has 16 divisors (see below), whose sum is σ = 2390322240. Its totient is φ = 537822288.

The previous prime is 1324636609. The next prime is 1324636669. The reversal of 1324636642 is 2466364231.

It is a happy number.

It is an unprimeable number.

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, 2489653 + ... + 2490184.

It is an arithmetic number, because the mean of its divisors is an integer number (149395140).

Almost surely, 2^1324636642 is an apocalyptic number.

1324636642 is a deficient number, since it is larger than the sum of its proper divisors (1065685598).

1324636642 is a wasteful number, since it uses less digits than its factorization.

1324636642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979865.

The product of its digits is 124416, while the sum is 37.

The square root of 1324636642 is about 36395.5579981953. The cubic root of 1324636642 is about 1098.2442077553.

The spelling of 1324636642 in words is "one billion, three hundred twenty-four million, six hundred thirty-six thousand, six hundred forty-two".