6529740 has 72 divisors (see below), whose sum is σ = 21277872. Its totient is φ = 1491840.

The previous prime is 6529709. The next prime is 6529763. The reversal of 6529740 is 479256.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1830 + ... + 4050.

It is an arithmetic number, because the mean of its divisors is an integer number (295526).

Almost surely, 2^6529740 is an apocalyptic number.

6529740 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 6529740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10638936).

6529740 is an abundant number, since it is smaller than the sum of its proper divisors (14748132).

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

6529740 is a wasteful number, since it uses less digits than its factorization.

6529740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 6529740 is about 2555.3355943985. The cubic root of 6529740 is about 186.9097527489.

The spelling of 6529740 in words is "six million, five hundred twenty-nine thousand, seven hundred forty".