6420248364 has 12 divisors (see below), whose sum is σ = 14980579544. Its totient is φ = 2140082784.

The previous prime is 6420248309. The next prime is 6420248369. The reversal of 6420248364 is 4638420246.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (6420248369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267510337 + ... + 267510360.

Almost surely, 2^6420248364 is an apocalyptic number.

It is an amenable number.

6420248364 is an abundant number, since it is smaller than the sum of its proper divisors (8560331180).

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

6420248364 is a wasteful number, since it uses less digits than its factorization.

6420248364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535020704 (or 535020702 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 39.

The square root of 6420248364 is about 80126.4523362915. The cubic root of 6420248364 is about 1858.5914842313.

The spelling of 6420248364 in words is "six billion, four hundred twenty million, two hundred forty-eight thousand, three hundred sixty-four".