6375021420 has 96 divisors (see below), whose sum is σ = 18985494528. Its totient is φ = 1592773632.

The previous prime is 6375021383. The next prime is 6375021451. The reversal of 6375021420 is 241205736.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213447 + ... + 241473.

It is an arithmetic number, because the mean of its divisors is an integer number (197765568).

Almost surely, 2^6375021420 is an apocalyptic number.

6375021420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6375021420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9492747264).

6375021420 is an abundant number, since it is smaller than the sum of its proper divisors (12610473108).

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

6375021420 is a wasteful number, since it uses less digits than its factorization.

6375021420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28279 (or 28277 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 6375021420 is about 79843.7312504870. The cubic root of 6375021420 is about 1854.2169613514.

The spelling of 6375021420 in words is "six billion, three hundred seventy-five million, twenty-one thousand, four hundred twenty".