2150443420 has 48 divisors (see below), whose sum is σ = 4729213440. Its totient is φ = 819821376.

The previous prime is 2150443411. The next prime is 2150443423. The reversal of 2150443420 is 243440512.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150443423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121921 + ... + 138439.

It is an arithmetic number, because the mean of its divisors is an integer number (98525280).

Almost surely, 2^2150443420 is an apocalyptic number.

2150443420 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 2150443420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2364606720).

2150443420 is an abundant number, since it is smaller than the sum of its proper divisors (2578770020).

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

2150443420 is a wasteful number, since it uses less digits than its factorization.

2150443420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16834 (or 16832 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2150443420 is about 46372.8737517959. The cubic root of 2150443420 is about 1290.7516041461.

Adding to 2150443420 its reverse (243440512), we get a palindrome (2393883932).

The spelling of 2150443420 in words is "two billion, one hundred fifty million, four hundred forty-three thousand, four hundred twenty".