2215041140 has 96 divisors (see below), whose sum is σ = 5200742400. Its totient is φ = 786931200.

The previous prime is 2215041139. The next prime is 2215041161. The reversal of 2215041140 is 411405122.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 1603250 + ... + 1604630.

It is an arithmetic number, because the mean of its divisors is an integer number (54174400).

Almost surely, 2^2215041140 is an apocalyptic number.

2215041140 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 2215041140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2600371200).

2215041140 is an abundant number, since it is smaller than the sum of its proper divisors (2985701260).

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

2215041140 is a wasteful number, since it uses less digits than its factorization.

2215041140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2215041140 is about 47064.2235673765. The cubic root of 2215041140 is about 1303.5487142320.

Adding to 2215041140 its reverse (411405122), we get a palindrome (2626446262).

The spelling of 2215041140 in words is "two billion, two hundred fifteen million, forty-one thousand, one hundred forty".