2115443000 has 96 divisors (see below), whose sum is σ = 5441370480. Its totient is φ = 769208000.

The previous prime is 2115442999. The next prime is 2115443003. The reversal of 2115443000 is 3445112.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115443003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112259 + ... + 129741.

Almost surely, 2^2115443000 is an apocalyptic number.

2115443000 is a gapful number since it is divisible by the number (20) 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 2115443000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2720685240).

2115443000 is an abundant number, since it is smaller than the sum of its proper divisors (3325927480).

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

2115443000 is a wasteful number, since it uses less digits than its factorization.

2115443000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17526 (or 17501 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2115443000 is about 45993.9452536962. The cubic root of 2115443000 is about 1283.7105467102.

Adding to 2115443000 its reverse (3445112), we get a palindrome (2118888112).

The spelling of 2115443000 in words is "two billion, one hundred fifteen million, four hundred forty-three thousand".