6229640 has 16 divisors (see below), whose sum is σ = 14016780. Its totient is φ = 2491840.

The previous prime is 6229627. The next prime is 6229649. The reversal of 6229640 is 469226.

It can be written as a sum of positive squares in 2 ways, for example, as 6220036 + 9604 = 2494^2 + 98^2 .

It is not an unprimeable number, because it can be changed into a prime (6229649) 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 3 ways as a sum of consecutive naturals, for example, 77831 + ... + 77910.

Almost surely, 2^6229640 is an apocalyptic number.

It is an amenable number.

6229640 is an abundant number, since it is smaller than the sum of its proper divisors (7787140).

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

6229640 is a wasteful number, since it uses less digits than its factorization.

6229640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155752 (or 155748 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6229640 is about 2495.9246783507. The cubic root of 6229640 is about 184.0013389947.

The spelling of 6229640 in words is "six million, two hundred twenty-nine thousand, six hundred forty".