6269640 has 64 divisors (see below), whose sum is σ = 20260800. Its totient is φ = 1542912.

The previous prime is 6269629. The next prime is 6269647. The reversal of 6269640 is 469626.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6269647) 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, 450 + ... + 3569.

It is an arithmetic number, because the mean of its divisors is an integer number (316575).

Almost surely, 2^6269640 is an apocalyptic number.

6269640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6269640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10130400).

6269640 is an abundant number, since it is smaller than the sum of its proper divisors (13991160).

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

6269640 is a wasteful number, since it uses less digits than its factorization.

6269640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4046 (or 4042 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 6269640 is about 2503.9249190022. The cubic root of 6269640 is about 184.3943181903.

The spelling of 6269640 in words is "six million, two hundred sixty-nine thousand, six hundred forty".