6420342602 has 32 divisors (see below), whose sum is σ = 9943879680. Its totient is φ = 3107076480.

The previous prime is 6420342559. The next prime is 6420342623. The reversal of 6420342602 is 2062430246.

It is a super-2 number, since 2×6420342602² = 82441598254112260808, which contains 22 as substring.

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, 8758628 + ... + 8759360.

It is an arithmetic number, because the mean of its divisors is an integer number (310746240).

Almost surely, 2^6420342602 is an apocalyptic number.

6420342602 is a deficient number, since it is larger than the sum of its proper divisors (3523537078).

6420342602 is a wasteful number, since it uses less digits than its factorization.

6420342602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 6420342602 is about 80127.0403921173. The cubic root of 6420342602 is about 1858.6005778092.

Adding to 6420342602 its reverse (2062430246), we get a palindrome (8482772848).

The spelling of 6420342602 in words is "six billion, four hundred twenty million, three hundred forty-two thousand, six hundred two".