2188415274 has 16 divisors (see below), whose sum is σ = 4388262912. Its totient is φ = 727566368.

The previous prime is 2188415233. The next prime is 2188415309. The reversal of 2188415274 is 4725148812.

It is a super-2 number, since 2×2188415274² = 9578322822952990152, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473859 + ... + 478454.

It is an arithmetic number, because the mean of its divisors is an integer number (274266432).

Almost surely, 2^2188415274 is an apocalyptic number.

2188415274 is an abundant number, since it is smaller than the sum of its proper divisors (2199847638).

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

2188415274 is a wasteful number, since it uses less digits than its factorization.

2188415274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952701.

The product of its digits is 143360, while the sum is 42.

The square root of 2188415274 is about 46780.5010020201. The cubic root of 2188415274 is about 1298.3045499260.

It can be divided in two parts, 218841 and 5274, that added together give a triangular number (224115 = T₆₆₉).

The spelling of 2188415274 in words is "two billion, one hundred eighty-eight million, four hundred fifteen thousand, two hundred seventy-four".