2187941652 has 96 divisors (see below), whose sum is σ = 6251020160. Its totient is φ = 657538560.

The previous prime is 2187941641. The next prime is 2187941659. The reversal of 2187941652 is 2561497812.

2187941652 is a `hidden beast` number, since 2 + 187 + 9 + 416 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2187941598 and 2187941607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187941659) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 42252 + ... + 78492.

Almost surely, 2^2187941652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2187941652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3125510080).

2187941652 is an abundant number, since it is smaller than the sum of its proper divisors (4063078508).

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

2187941652 is a wasteful number, since it uses less digits than its factorization.

2187941652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36310 (or 36302 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 2187941652 is about 46775.4385548655. The cubic root of 2187941652 is about 1298.2108824565.

The spelling of 2187941652 in words is "two billion, one hundred eighty-seven million, nine hundred forty-one thousand, six hundred fifty-two".