3844897980 has 192 divisors, whose sum is σ = 13708541952. Its totient is φ = 781896960.

The previous prime is 3844897963. The next prime is 3844897993. The reversal of 3844897980 is 897984483.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 208287 + ... + 225993.

It is an arithmetic number, because the mean of its divisors is an integer number (71398656).

Almost surely, 2^3844897980 is an apocalyptic number.

3844897980 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 3844897980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6854270976).

3844897980 is an abundant number, since it is smaller than the sum of its proper divisors (9863643972).

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

3844897980 is a wasteful number, since it uses less digits than its factorization.

3844897980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17784 (or 17782 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 60.

The square root of 3844897980 is about 62007.2413513132. The cubic root of 3844897980 is about 1566.6125702361.

The spelling of 3844897980 in words is "three billion, eight hundred forty-four million, eight hundred ninety-seven thousand, nine hundred eighty".