6261660 has 72 divisors (see below), whose sum is σ = 19459440. Its totient is φ = 1628928.

The previous prime is 6261649. The next prime is 6261677. The reversal of 6261660 is 661626.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7336 + ... + 8144.

It is an arithmetic number, because the mean of its divisors is an integer number (270270).

Almost surely, 2^6261660 is an apocalyptic number.

6261660 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 6261660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9729720).

6261660 is an abundant number, since it is smaller than the sum of its proper divisors (13197780).

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

6261660 is a wasteful number, since it uses less digits than its factorization.

6261660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 6261660 is about 2502.3309133686. The cubic root of 6261660 is about 184.3160525911.

The spelling of 6261660 in words is "six million, two hundred sixty-one thousand, six hundred sixty".