6457830 has 16 divisors (see below), whose sum is σ = 15498864. Its totient is φ = 1722080.

The previous prime is 6457811. The next prime is 6457831. The reversal of 6457830 is 387546.

It is a junction number, because it is equal to n+sod(n) for n = 6457791 and 6457800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6457831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107601 + ... + 107660.

It is an arithmetic number, because the mean of its divisors is an integer number (968679).

Almost surely, 2^6457830 is an apocalyptic number.

6457830 is an abundant number, since it is smaller than the sum of its proper divisors (9041034).

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

6457830 is a wasteful number, since it uses less digits than its factorization.

6457830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215271.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 6457830 is about 2541.2260820321. The cubic root of 6457830 is about 186.2210921607.

The spelling of 6457830 in words is "six million, four hundred fifty-seven thousand, eight hundred thirty".