2361742221 has 16 divisors (see below), whose sum is σ = 3340104768. Its totient is φ = 1479264000.

The previous prime is 2361742213. The next prime is 2361742261. The reversal of 2361742221 is 1222471632.

It is not a de Polignac number, because 2361742221 - 2³ = 2361742213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2361742261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11430 + ... + 69671.

It is an arithmetic number, because the mean of its divisors is an integer number (208756548).

Almost surely, 2^2361742221 is an apocalyptic number.

It is an amenable number.

2361742221 is a deficient number, since it is larger than the sum of its proper divisors (978362547).

2361742221 is a wasteful number, since it uses less digits than its factorization.

2361742221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81692.

The product of its digits is 8064, while the sum is 30.

The square root of 2361742221 is about 48597.7594236607. The cubic root of 2361742221 is about 1331.7135884430.

It can be divided in two parts, 236174 and 2221, that added together give a triangular number (238395 = T₆₉₀).

The spelling of 2361742221 in words is "two billion, three hundred sixty-one million, seven hundred forty-two thousand, two hundred twenty-one".