1042021433 has 4 divisors (see below), whose sum is σ = 1052764020. Its totient is φ = 1031278848.

The previous prime is 1042021429. The next prime is 1042021447. The reversal of 1042021433 is 3341202401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3341202401 = 46507 ⋅71843.

It can be written as a sum of positive squares in 2 ways, for example, as 209583529 + 832437904 = 14477^2 + 28852^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042021433 - 2² = 1042021429 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042021483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5371148 + ... + 5371341.

It is an arithmetic number, because the mean of its divisors is an integer number (263191005).

Almost surely, 2^1042021433 is an apocalyptic number.

It is an amenable number.

1042021433 is a deficient number, since it is larger than the sum of its proper divisors (10742587).

1042021433 is an equidigital number, since it uses as much as digits as its factorization.

1042021433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10742586.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1042021433 is about 32280.3567669256. The cubic root of 1042021433 is about 1013.8154000935.

Adding to 1042021433 its reverse (3341202401), we get a palindrome (4383223834).

The spelling of 1042021433 in words is "one billion, forty-two million, twenty-one thousand, four hundred thirty-three".