2182131630 has 64 divisors (see below), whose sum is σ = 6650311680. Its totient is φ = 498772512.

The previous prime is 2182131617. The next prime is 2182131641. The reversal of 2182131630 is 361312812.

It is a happy number.

2182131630 is a `hidden beast` number, since 2 + 1 + 8 + 21 + 3 + 1 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2182131594 and 2182131603.

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, 575394 + ... + 579173.

It is an arithmetic number, because the mean of its divisors is an integer number (103911120).

Almost surely, 2^2182131630 is an apocalyptic number.

2182131630 is an abundant number, since it is smaller than the sum of its proper divisors (4468180050).

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

2182131630 is a wasteful number, since it uses less digits than its factorization.

2182131630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154590 (or 1154584 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2182131630 is about 46713.2917915233. The cubic root of 2182131630 is about 1297.0607420845.

The spelling of 2182131630 in words is "two billion, one hundred eighty-two million, one hundred thirty-one thousand, six hundred thirty".