6460402020 has 48 divisors (see below), whose sum is σ = 18578027328. Its totient is φ = 1676211840.

The previous prime is 6460401977. The next prime is 6460402031. The reversal of 6460402020 is 202040646.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1452826 + ... + 1457265.

It is an arithmetic number, because the mean of its divisors is an integer number (387042236).

Almost surely, 2^6460402020 is an apocalyptic number.

6460402020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6460402020 is an abundant number, since it is smaller than the sum of its proper divisors (12117625308).

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

6460402020 is a wasteful number, since it uses less digits than its factorization.

6460402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910140 (or 2910138 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 6460402020 is about 80376.6260799743. The cubic root of 6460402020 is about 1862.4581154793.

Adding to 6460402020 its reverse (202040646), we get a palindrome (6662442666).

The spelling of 6460402020 in words is "six billion, four hundred sixty million, four hundred two thousand, twenty".