6430215040 has 64 divisors (see below), whose sum is σ = 15383844000. Its totient is φ = 2570143744.

The previous prime is 6430215019. The next prime is 6430215059. The reversal of 6430215040 is 405120346.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 6430214996 and 6430215014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1090821 + ... + 1096699.

Almost surely, 2^6430215040 is an apocalyptic number.

It is an amenable number.

6430215040 is an abundant number, since it is smaller than the sum of its proper divisors (8953628960).

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

6430215040 is a wasteful number, since it uses less digits than its factorization.

6430215040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7607 (or 7595 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6430215040 is about 80188.6216367385. The cubic root of 6430215040 is about 1859.5527347894.

Adding to 6430215040 its reverse (405120346), we get a palindrome (6835335386).

The spelling of 6430215040 in words is "six billion, four hundred thirty million, two hundred fifteen thousand, forty".