1043140402 has 4 divisors (see below), whose sum is σ = 1564710606. Its totient is φ = 521570200.

The previous prime is 1043140381. The next prime is 1043140429. The reversal of 1043140402 is 2040413401.

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., 716579361 + 326561041 = 26769^2 + 18071^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1043140402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260785099 + ... + 260785102.

Almost surely, 2^1043140402 is an apocalyptic number.

1043140402 is a deficient number, since it is larger than the sum of its proper divisors (521570204).

1043140402 is an equidigital number, since it uses as much as digits as its factorization.

1043140402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521570203.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1043140402 is about 32297.6841584656. The cubic root of 1043140402 is about 1014.1781636427.

Adding to 1043140402 its reverse (2040413401), we get a palindrome (3083553803).

The spelling of 1043140402 in words is "one billion, forty-three million, one hundred forty thousand, four hundred two".