6402430 has 32 divisors (see below), whose sum is σ = 12533760. Its totient is φ = 2345760.

The previous prime is 6402413. The next prime is 6402433. The reversal of 6402430 is 342046.

It is a super-2 number, since 2×6402430² = 81982219809800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6402398 and 6402407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5347 + ... + 6433.

It is an arithmetic number, because the mean of its divisors is an integer number (391680).

Almost surely, 2^6402430 is an apocalyptic number.

6402430 is a deficient number, since it is larger than the sum of its proper divisors (6131330).

6402430 is a wasteful number, since it uses less digits than its factorization.

6402430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 6402430 is about 2530.3023534748. The cubic root of 6402430 is about 185.6870484146.

Adding to 6402430 its reverse (342046), we get a palindrome (6744476).

The spelling of 6402430 in words is "six million, four hundred two thousand, four hundred thirty".