2181477274 has 8 divisors (see below), whose sum is σ = 3414486240. Its totient is φ = 1043315196.

The previous prime is 2181477253. The next prime is 2181477307. The reversal of 2181477274 is 4727741812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2181477274.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 23711664 + ... + 23711755.

It is an arithmetic number, because the mean of its divisors is an integer number (426810780).

Almost surely, 2^2181477274 is an apocalyptic number.

2181477274 is a deficient number, since it is larger than the sum of its proper divisors (1233008966).

2181477274 is a wasteful number, since it uses less digits than its factorization.

2181477274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47423444.

The product of its digits is 175616, while the sum is 43.

The square root of 2181477274 is about 46706.2873069569. The cubic root of 2181477274 is about 1296.9310792174.

The spelling of 2181477274 in words is "two billion, one hundred eighty-one million, four hundred seventy-seven thousand, two hundred seventy-four".