1068439725 has 18 divisors (see below), whose sum is σ = 1913694666. Its totient is φ = 569834400.

The previous prime is 1068439717. The next prime is 1068439751. The reversal of 1068439725 is 5279348601.

1068439725 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 91814724 + 976625001 = 9582^2 + 31251^2 .

It is not a de Polignac number, because 1068439725 - 2³ = 1068439717 is a prime.

It is a super-2 number, since 2×1068439725² = 2283126891916151250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

1068439725 is strictly pandigital in base 10.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 2374086 + ... + 2374535.

It is a 2-persistent number, because it is pandigital, and so is 2⋅1068439725 = 2136879450, but 3⋅1068439725 = 3205319175 is not.

Almost surely, 2^1068439725 is an apocalyptic number.

1068439725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1068439725 is a deficient number, since it is larger than the sum of its proper divisors (845254941).

1068439725 is a wasteful number, since it uses less digits than its factorization.

1068439725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748637 (or 4748629 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1068439725 is about 32686.9962676291. The cubic root of 1068439725 is about 1022.3117261846.

The spelling of 1068439725 in words is "one billion, sixty-eight million, four hundred thirty-nine thousand, seven hundred twenty-five".