2144742274 has 4 divisors (see below), whose sum is σ = 3217113414. Its totient is φ = 1072371136.

The previous prime is 2144742239. The next prime is 2144742277. The reversal of 2144742274 is 4722474412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1101775249 + 1042967025 = 33193^2 + 32295^2 .

It is not an unprimeable number, because it can be changed into a prime (2144742277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536185567 + ... + 536185570.

Almost surely, 2^2144742274 is an apocalyptic number.

2144742274 is a deficient number, since it is larger than the sum of its proper divisors (1072371140).

2144742274 is a wasteful number, since it uses less digits than its factorization.

2144742274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072371139.

The product of its digits is 100352, while the sum is 37.

The square root of 2144742274 is about 46311.3622559302. The cubic root of 2144742274 is about 1289.6099363500.

The spelling of 2144742274 in words is "two billion, one hundred forty-four million, seven hundred forty-two thousand, two hundred seventy-four".