6121980 has 60 divisors (see below), whose sum is σ = 19209960. Its totient is φ = 1632096.

The previous prime is 6121957. The next prime is 6122029. The reversal of 6121980 is 891216.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 270 + ... + 3509.

It is an arithmetic number, because the mean of its divisors is an integer number (320166).

Almost surely, 2^6121980 is an apocalyptic number.

6121980 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 6121980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9604980).

6121980 is an abundant number, since it is smaller than the sum of its proper divisors (13087980).

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

6121980 is a wasteful number, since it uses less digits than its factorization.

6121980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800 (or 3789 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 6121980 is about 2474.2635267893. The cubic root of 6121980 is about 182.9352095283.

The spelling of 6121980 in words is "six million, one hundred twenty-one thousand, nine hundred eighty".