662005140 has 96 divisors (see below), whose sum is σ = 1889153280. Its totient is φ = 173184000.

The previous prime is 662005121. The next prime is 662005171. The reversal of 662005140 is 41500266.

It is a self number, because there is not a number n which added to its sum of digits gives 662005140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 805930 + ... + 806750.

It is an arithmetic number, because the mean of its divisors is an integer number (19678680).

Almost surely, 2^662005140 is an apocalyptic number.

662005140 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 662005140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (944576640).

662005140 is an abundant number, since it is smaller than the sum of its proper divisors (1227148140).

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

662005140 is a wasteful number, since it uses less digits than its factorization.

662005140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 662005140 is about 25729.4605462299. The cubic root of 662005140 is about 871.5395912099.

The spelling of 662005140 in words is "six hundred sixty-two million, five thousand, one hundred forty".