662940 has 72 divisors (see below), whose sum is σ = 2096640. Its totient is φ = 169344.

The previous prime is 662939. The next prime is 662941. The reversal of 662940 is 49266.

662940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (662939) and next prime (662941).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5157 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (29120).

2⁶⁶²⁹⁴⁰ is an apocalyptic number.

662940 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 662940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048320).

662940 is an abundant number, since it is smaller than the sum of its proper divisors (1433700).

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

662940 is a wasteful number, since it uses less digits than its factorization.

662940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 166 counting only the distinct ones).

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

The square root of 662940 is about 814.2112747930. The cubic root of 662940 is about 87.1949650601.

The spelling of 662940 in words is "six hundred sixty-two thousand, nine hundred forty".