2141540220 has 24 divisors (see below), whose sum is σ = 5996312784. Its totient is φ = 571077376.

The previous prime is 2141540183. The next prime is 2141540221. The reversal of 2141540220 is 220451412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141540221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17846109 + ... + 17846228.

It is an arithmetic number, because the mean of its divisors is an integer number (249846366).

Almost surely, 2^2141540220 is an apocalyptic number.

2141540220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2141540220 is an abundant number, since it is smaller than the sum of its proper divisors (3854772564).

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

2141540220 is a wasteful number, since it uses less digits than its factorization.

2141540220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35692349 (or 35692347 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2141540220 is about 46276.7784099109. The cubic root of 2141540220 is about 1288.9678300782.

Adding to 2141540220 its reverse (220451412), we get a palindrome (2361991632).

It can be divided in two parts, 2141 and 540220, that added together give a triangular number (542361 = T₁₀₄₁).

The spelling of 2141540220 in words is "two billion, one hundred forty-one million, five hundred forty thousand, two hundred twenty".