1214743442 has 12 divisors (see below), whose sum is σ = 2002821198. Its totient is φ = 552156000.

The previous prime is 1214743441. The next prime is 1214743457. The reversal of 1214743442 is 2443474121.

It can be written as a sum of positive squares in only one way, i.e., 1169571601 + 45171841 = 34199^2 + 6721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1214743399 and 1214743408.

It is not an unprimeable number, because it can be changed into a prime (1214743441) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2509559 + ... + 2510042.

Almost surely, 2^1214743442 is an apocalyptic number.

1214743442 is a deficient number, since it is larger than the sum of its proper divisors (788077756).

1214743442 is a wasteful number, since it uses less digits than its factorization.

1214743442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5019625 (or 5019614 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 1214743442 is about 34853.1697554182. The cubic root of 1214743442 is about 1066.9928791107.

The spelling of 1214743442 in words is "one billion, two hundred fourteen million, seven hundred forty-three thousand, four hundred forty-two".