662040 has 64 divisors (see below), whose sum is σ = 2210400. Its totient is φ = 176256.

The previous prime is 662029. The next prime is 662047. The reversal of 662040 is 40266.

662040 is a `hidden beast` number, since 6 + 620 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 662040.

It is not an unprimeable number, because it can be changed into a prime (662047) by changing a digit.

662040 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774 + ... + 1386.

2⁶⁶²⁰⁴⁰ is an apocalyptic number.

662040 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 662040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105200).

662040 is an abundant number, since it is smaller than the sum of its proper divisors (1548360).

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

662040 is a wasteful number, since it uses less digits than its factorization.

662040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 662040 is about 813.6584049833. The cubic root of 662040 is about 87.1554888844.

The spelling of 662040 in words is "six hundred sixty-two thousand, forty".