6425730 has 40 divisors (see below), whose sum is σ = 17280252. Its totient is φ = 1713312.

The previous prime is 6425719. The next prime is 6425737. The reversal of 6425730 is 375246.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6215049 + 210681 = 2493^2 + 459^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 6425694 and 6425703.

It is not an unprimeable number, because it can be changed into a prime (6425737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3157 + ... + 4776.

Almost surely, 2^6425730 is an apocalyptic number.

6425730 is an abundant number, since it is smaller than the sum of its proper divisors (10854522).

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

6425730 is a wasteful number, since it uses less digits than its factorization.

6425730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952 (or 7943 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 6425730 is about 2534.9023649837. The cubic root of 6425730 is about 185.9120291594.

The spelling of 6425730 in words is "six million, four hundred twenty-five thousand, seven hundred thirty".