6662040 has 192 divisors, whose sum is σ = 25608960. Its totient is φ = 1370880.

The previous prime is 6662009. The next prime is 6662041. The reversal of 6662040 is 402666.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 6662040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64629 + ... + 64731.

It is an arithmetic number, because the mean of its divisors is an integer number (133380).

Almost surely, 2^6662040 is an apocalyptic number.

6662040 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 6662040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12804480).

6662040 is an abundant number, since it is smaller than the sum of its proper divisors (18946920).

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

6662040 is a wasteful number, since it uses less digits than its factorization.

6662040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 6662040 is about 2581.0927918229. The cubic root of 6662040 is about 188.1636571001.

The spelling of 6662040 in words is "six million, six hundred sixty-two thousand, forty".