1144210402 has 4 divisors (see below), whose sum is σ = 1716315606. Its totient is φ = 572105200.

The previous prime is 1144210391. The next prime is 1144210421. The reversal of 1144210402 is 2040124411.

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., 1003052241 + 141158161 = 31671^2 + 11881^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1144210402.

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 as a sum of consecutive naturals, namely, 286052599 + ... + 286052602.

Almost surely, 2^1144210402 is an apocalyptic number.

1144210402 is a deficient number, since it is larger than the sum of its proper divisors (572105204).

1144210402 is an equidigital number, since it uses as much as digits as its factorization.

1144210402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572105203.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1144210402 is about 33826.1792403458. The cubic root of 1144210402 is about 1045.9284201195.

Adding to 1144210402 its reverse (2040124411), we get a palindrome (3184334813).

The spelling of 1144210402 in words is "one billion, one hundred forty-four million, two hundred ten thousand, four hundred two".