366840 has 48 divisors (see below), whose sum is σ = 1193400. Its totient is φ = 97728.

The previous prime is 366829. The next prime is 366841. The reversal of 366840 is 48663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366841) by changing a digit.

366840 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150 + ... + 869.

2³⁶⁶⁸⁴⁰ is an apocalyptic number.

366840 is a gapful number since it is divisible by the number (30) 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 366840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596700).

366840 is an abundant number, since it is smaller than the sum of its proper divisors (826560).

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

366840 is a wasteful number, since it uses less digits than its factorization.

366840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 366840 is about 605.6731791982. The cubic root of 366840 is about 71.5855822327.

The spelling of 366840 in words is "three hundred sixty-six thousand, eight hundred forty".