1045728434 has 4 divisors (see below), whose sum is σ = 1568592654. Its totient is φ = 522864216.

The previous prime is 1045728421. The next prime is 1045728457. The reversal of 1045728434 is 4348275401.

1045728434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4348275401 = 181 ⋅24023621.

It can be written as a sum of positive squares in only one way, i.e., 740003209 + 305725225 = 27203^2 + 17485^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261432107 + ... + 261432110.

Almost surely, 2^1045728434 is an apocalyptic number.

1045728434 is a deficient number, since it is larger than the sum of its proper divisors (522864220).

1045728434 is an equidigital number, since it uses as much as digits as its factorization.

1045728434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522864219.

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 1045728434 is about 32337.7246262009. The cubic root of 1045728434 is about 1015.0161965270.

The spelling of 1045728434 in words is "one billion, forty-five million, seven hundred twenty-eight thousand, four hundred thirty-four".