6400146530 has 16 divisors (see below), whose sum is σ = 11521299384. Its totient is φ = 2559828480.

The previous prime is 6400146469. The next prime is 6400146547. The reversal of 6400146530 is 356410046.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6330907489 + 69239041 = 79567^2 + 8321^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6400146493 and 6400146502.

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, 129500 + ... + 171960.

Almost surely, 2^6400146530 is an apocalyptic number.

6400146530 is a deficient number, since it is larger than the sum of its proper divisors (5121152854).

6400146530 is a wasteful number, since it uses less digits than its factorization.

6400146530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57541.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 6400146530 is about 80000.9158072581. The cubic root of 6400146530 is about 1856.6497027539.

Adding to 6400146530 its reverse (356410046), we get a palindrome (6756556576).

The spelling of 6400146530 in words is "six billion, four hundred million, one hundred forty-six thousand, five hundred thirty".