6742520 has 32 divisors (see below), whose sum is σ = 15433200. Its totient is φ = 2650368.

The previous prime is 6742517. The next prime is 6742553. The reversal of 6742520 is 252476.

It is a self number, because there is not a number n which added to its sum of digits gives 6742520.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 932 + ... + 3788.

Almost surely, 2^6742520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6742520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7716600).

6742520 is an abundant number, since it is smaller than the sum of its proper divisors (8690680).

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

6742520 is a wasteful number, since it uses less digits than its factorization.

6742520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927 (or 2923 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 6742520 is about 2596.6362856588. The cubic root of 6742520 is about 188.9183227232.

Adding to 6742520 its reverse (252476), we get a palindrome (6994996).

The spelling of 6742520 in words is "six million, seven hundred forty-two thousand, five hundred twenty".