1000040725 has 24 divisors (see below), whose sum is σ = 1325325888. Its totient is φ = 745900800.

The previous prime is 1000040711. The next prime is 1000040791. The reversal of 1000040725 is 5270400001.

It is not a de Polignac number, because 1000040725 - 2⁷ = 1000040597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34480 + ... + 56470.

It is an arithmetic number, because the mean of its divisors is an integer number (55221912).

Almost surely, 2^1000040725 is an apocalyptic number.

It is an amenable number.

1000040725 is a deficient number, since it is larger than the sum of its proper divisors (325285163).

1000040725 is a wasteful number, since it uses less digits than its factorization.

1000040725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22125 (or 22120 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1000040725 is about 31623.4205139166. The cubic root of 1000040725 is about 1000.0135748157.

Adding to 1000040725 its reverse (5270400001), we get a palindrome (6270440726).

The spelling of 1000040725 in words is "one billion, forty thousand, seven hundred twenty-five".