2036221440 has 160 divisors (see below), whose sum is σ = 7101616896. Its totient is φ = 493608960.

The previous prime is 2036221409. The next prime is 2036221463. The reversal of 2036221440 is 441226302.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2036221440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72429 + ... + 96531.

Almost surely, 2^2036221440 is an apocalyptic number.

2036221440 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 2036221440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3550808448).

2036221440 is an abundant number, since it is smaller than the sum of its proper divisors (5065395456).

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

2036221440 is a wasteful number, since it uses less digits than its factorization.

2036221440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24140 (or 24124 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2036221440 is about 45124.5104128566. The cubic root of 2036221440 is about 1267.4816153008.

Adding to 2036221440 its reverse (441226302), we get a palindrome (2477447742).

The spelling of 2036221440 in words is "two billion, thirty-six million, two hundred twenty-one thousand, four hundred forty".