1038728045 has 4 divisors (see below), whose sum is σ = 1246473660. Its totient is φ = 830982432.

The previous prime is 1038728029. The next prime is 1038728057. The reversal of 1038728045 is 5408278301.

1038728045 is digitally balanced in base 6, 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: 5408278301 = 79 ⋅68459219.

It can be written as a sum of positive squares in 2 ways, for example, as 495418564 + 543309481 = 22258^2 + 23309^2 .

It is a cyclic number.

It is not a de Polignac number, because 1038728045 - 2⁴ = 1038728029 is a prime.

It is a super-3 number, since 3×1038728045³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103872800 + ... + 103872809.

It is an arithmetic number, because the mean of its divisors is an integer number (311618415).

Almost surely, 2^1038728045 is an apocalyptic number.

It is an amenable number.

1038728045 is a deficient number, since it is larger than the sum of its proper divisors (207745615).

1038728045 is an equidigital number, since it uses as much as digits as its factorization.

1038728045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207745614.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 1038728045 is about 32229.3041345916. The cubic root of 1038728045 is about 1012.7461926348.

The spelling of 1038728045 in words is "one billion, thirty-eight million, seven hundred twenty-eight thousand, forty-five".