2341861821 has 32 divisors (see below), whose sum is σ = 3827456640. Its totient is φ = 1405987200.

The previous prime is 2341861793. The next prime is 2341861883. The reversal of 2341861821 is 1281681432.

2341861821 is a `hidden beast` number, since 2 + 3 + 4 + 18 + 618 + 21 = 666.

It is not a de Polignac number, because 2341861821 - 2¹⁷ = 2341730749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2341861121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66975 + ... + 95756.

It is an arithmetic number, because the mean of its divisors is an integer number (119608020).

Almost surely, 2^2341861821 is an apocalyptic number.

It is an amenable number.

2341861821 is a deficient number, since it is larger than the sum of its proper divisors (1485594819).

2341861821 is a wasteful number, since it uses less digits than its factorization.

2341861821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162794 (or 162788 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 2341861821 is about 48392.7868695325. The cubic root of 2341861821 is about 1327.9664063831.

The spelling of 2341861821 in words is "two billion, three hundred forty-one million, eight hundred sixty-one thousand, eight hundred twenty-one".