3213260642 has 4 divisors (see below), whose sum is σ = 4819890966. Its totient is φ = 1606630320.

The previous prime is 3213260641. The next prime is 3213260669. The reversal of 3213260642 is 2460623123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2267759641 + 945501001 = 47621^2 + 30749^2 .

It is not an unprimeable number, because it can be changed into a prime (3213260641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803315159 + ... + 803315162.

Almost surely, 2^3213260642 is an apocalyptic number.

3213260642 is a deficient number, since it is larger than the sum of its proper divisors (1606630324).

3213260642 is a wasteful number, since it uses less digits than its factorization.

3213260642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606630323.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 3213260642 is about 56685.6299426936. The cubic root of 3213260642 is about 1475.6453201559.

Adding to 3213260642 its reverse (2460623123), we get a palindrome (5673883765).

The spelling of 3213260642 in words is "three billion, two hundred thirteen million, two hundred sixty thousand, six hundred forty-two".