1039740025 has 9 divisors (see below), whose sum is σ = 1289477581. Its totient is φ = 831663040.

The previous prime is 1039740011. The next prime is 1039740041. The reversal of 1039740025 is 5200479301.

The square root of 1039740025 is 32245.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 212372329 + 827367696 = 14573^2 + 28764^2 .

It is not a de Polignac number, because 1039740025 - 2²¹ = 1037642873 is a prime.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 158001 + ... + 164449.

Almost surely, 2^1039740025 is an apocalyptic number.

1039740025 is the 32245-th square number.

1039740025 is the 16123-rd centered octagonal number.

It is an amenable number.

1039740025 is a deficient number, since it is larger than the sum of its proper divisors (249737556).

1039740025 is an frugal number, since it uses more digits than its factorization.

1039740025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12908 (or 6454 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The cubic root of 1039740025 is about 1013.0749749527.

The spelling of 1039740025 in words is "one billion, thirty-nine million, seven hundred forty thousand, twenty-five".