3619980 has 216 divisors, whose sum is σ = 14388192. Its totient is φ = 718848.

The previous prime is 3619961. The next prime is 3619981. The reversal of 3619980 is 899163.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (3619981) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 212932 + ... + 212948.

It is an arithmetic number, because the mean of its divisors is an integer number (66612).

Almost surely, 2^3619980 is an apocalyptic number.

3619980 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 3619980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7194096).

3619980 is an abundant number, since it is smaller than the sum of its proper divisors (10768212).

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

3619980 is a wasteful number, since it uses less digits than its factorization.

3619980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 3619980 is about 1902.6245031535. The cubic root of 3619980 is about 153.5448980413.

The spelling of 3619980 in words is "three million, six hundred nineteen thousand, nine hundred eighty".