2043221240 has 64 divisors (see below), whose sum is σ = 4900608000. Its totient is φ = 764449920.

The previous prime is 2043221203. The next prime is 2043221287. The reversal of 2043221240 is 421223402.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43025 + ... + 77055.

It is an arithmetic number, because the mean of its divisors is an integer number (76572000).

Almost surely, 2^2043221240 is an apocalyptic number.

2043221240 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 2043221240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2450304000).

2043221240 is an abundant number, since it is smaller than the sum of its proper divisors (2857386760).

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

2043221240 is a wasteful number, since it uses less digits than its factorization.

2043221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34140 (or 34136 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2043221240 is about 45202.0048227952. The cubic root of 2043221240 is about 1268.9323368219.

Adding to 2043221240 its reverse (421223402), we get a palindrome (2464444642).

The spelling of 2043221240 in words is "two billion, forty-three million, two hundred twenty-one thousand, two hundred forty".