2188436132 has 6 divisors (see below), whose sum is σ = 3829763238. Its totient is φ = 1094218064.

The previous prime is 2188436123. The next prime is 2188436141. The reversal of 2188436132 is 2316348812.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2188436123) and next prime (2188436141).

It can be written as a sum of positive squares in only one way, i.e., 1576566436 + 611869696 = 39706^2 + 24736^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273554513 + ... + 273554520.

It is an arithmetic number, because the mean of its divisors is an integer number (638293873).

Almost surely, 2^2188436132 is an apocalyptic number.

It is an amenable number.

2188436132 is a deficient number, since it is larger than the sum of its proper divisors (1641327106).

2188436132 is a wasteful number, since it uses less digits than its factorization.

2188436132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547109037 (or 547109035 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 2188436132 is about 46780.7239362539. The cubic root of 2188436132 is about 1298.3086746688.

The spelling of 2188436132 in words is "two billion, one hundred eighty-eight million, four hundred thirty-six thousand, one hundred thirty-two".