6405332630 has 32 divisors (see below), whose sum is σ = 12232028160. Its totient is φ = 2408162400.

The previous prime is 6405332627. The next prime is 6405332653. The reversal of 6405332630 is 362335046.

It is a super-2 number, since 2×6405332630² = 82056572201885433800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108596 + ... + 156855.

It is an arithmetic number, because the mean of its divisors is an integer number (382250880).

Almost surely, 2^6405332630 is an apocalyptic number.

6405332630 is a deficient number, since it is larger than the sum of its proper divisors (5826695530).

6405332630 is a wasteful number, since it uses less digits than its factorization.

6405332630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265604.

The product of its (nonzero) digits is 38880, while the sum is 32.

The square root of 6405332630 is about 80033.3219977779. The cubic root of 6405332630 is about 1857.1510543707.

Adding to 6405332630 its reverse (362335046), we get a palindrome (6767667676).

The spelling of 6405332630 in words is "six billion, four hundred five million, three hundred thirty-two thousand, six hundred thirty".