662340 has 96 divisors (see below), whose sum is σ = 2257920. Its totient is φ = 141696.

The previous prime is 662339. The next prime is 662351. The reversal of 662340 is 43266.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 7939 + ... + 8021.

It is an arithmetic number, because the mean of its divisors is an integer number (23520).

2⁶⁶²³⁴⁰ is an apocalyptic number.

662340 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 662340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1128960).

662340 is an abundant number, since it is smaller than the sum of its proper divisors (1595580).

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

662340 is a wasteful number, since it uses less digits than its factorization.

662340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 662340 is about 813.8427366513. The cubic root of 662340 is about 87.1686515826.

The spelling of 662340 in words is "six hundred sixty-two thousand, three hundred forty".