6445332402 has 16 divisors (see below), whose sum is σ = 12944603520. Its totient is φ = 2139454352.

The previous prime is 6445332379. The next prime is 6445332427. The reversal of 6445332402 is 2042335446.

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, 2245893 + ... + 2248760.

It is an arithmetic number, because the mean of its divisors is an integer number (809037720).

Almost surely, 2^6445332402 is an apocalyptic number.

6445332402 is an abundant number, since it is smaller than the sum of its proper divisors (6499271118).

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

6445332402 is a wasteful number, since it uses less digits than its factorization.

6445332402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4494897.

The product of its (nonzero) digits is 69120, while the sum is 33.

The square root of 6445332402 is about 80282.8275660493. The cubic root of 6445332402 is about 1861.0088566785.

Adding to 6445332402 its reverse (2042335446), we get a palindrome (8487667848).

The spelling of 6445332402 in words is "six billion, four hundred forty-five million, three hundred thirty-two thousand, four hundred two".