6450730 has 48 divisors (see below), whose sum is σ = 13755744. Its totient is φ = 2159040.

The previous prime is 6450727. The next prime is 6450733. The reversal of 6450730 is 370546.

It is an interprime number because it is at equal distance from previous prime (6450727) and next prime (6450733).

It is a super-2 number, since 2×6450730² = 83223835065800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6450695 and 6450704.

It is not an unprimeable number, because it can be changed into a prime (6450733) 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 23 ways as a sum of consecutive naturals, for example, 18417 + ... + 18763.

It is an arithmetic number, because the mean of its divisors is an integer number (286578).

Almost surely, 2^6450730 is an apocalyptic number.

6450730 is an abundant number, since it is smaller than the sum of its proper divisors (7305014).

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

6450730 is a wasteful number, since it uses less digits than its factorization.

6450730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 6450730 is about 2539.8287343835. The cubic root of 6450730 is about 186.1528207961.

The spelling of 6450730 in words is "six million, four hundred fifty thousand, seven hundred thirty".