611940 has 96 divisors (see below), whose sum is σ = 2064384. Its totient is φ = 132480.

The previous prime is 611939. The next prime is 611951. The reversal of 611940 is 49116.

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, 12997 + ... + 13043.

It is an arithmetic number, because the mean of its divisors is an integer number (21504).

2⁶¹¹⁹⁴⁰ is an apocalyptic number.

611940 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 611940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1032192).

611940 is an abundant number, since it is smaller than the sum of its proper divisors (1452444).

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

611940 is a wasteful number, since it uses less digits than its factorization.

611940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 611940 is about 782.2659394349. The cubic root of 611940 is about 84.8990728269.

It can be divided in two parts, 611 and 940, that added together give a palindrome (1551).

The spelling of 611940 in words is "six hundred eleven thousand, nine hundred forty".