6425720 has 64 divisors (see below), whose sum is σ = 16873920. Its totient is φ = 2156544.

The previous prime is 6425719. The next prime is 6425737. The reversal of 6425720 is 275246.

6425720 = T₃₉₃ + T₃₉₄ + ... + T₄₆₂.

It is a self number, because there is not a number n which added to its sum of digits gives 6425720.

It is a congruent number.

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, 14624 + ... + 15056.

It is an arithmetic number, because the mean of its divisors is an integer number (263655).

Almost surely, 2^6425720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6425720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8436960).

6425720 is an abundant number, since it is smaller than the sum of its proper divisors (10448200).

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

6425720 is a wasteful number, since it uses less digits than its factorization.

6425720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 6425720 is about 2534.9003925204. The cubic root of 6425720 is about 185.9119327179.

The spelling of 6425720 in words is "six million, four hundred twenty-five thousand, seven hundred twenty".