1025689734 has 48 divisors (see below), whose sum is σ = 2265497520. Its totient is φ = 335301120.

The previous prime is 1025689733. The next prime is 1025689799. The reversal of 1025689734 is 4379865201.

1025689734 is a `hidden beast` number, since 10 + 2 + 568 + 9 + 73 + 4 = 666.

1025689734 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

1025689734 is strictly pandigital in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1025689734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025689733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288882 + ... + 292410.

It is an arithmetic number, because the mean of its divisors is an integer number (47197865).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1025689734 = 2051379468, but 3⋅1025689734 = 3077069202 is not.

Almost surely, 2^1025689734 is an apocalyptic number.

1025689734 is an abundant number, since it is smaller than the sum of its proper divisors (1239807786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025689734 is a wasteful number, since it uses less digits than its factorization.

1025689734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845 (or 3842 counting only the distinct ones).

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

The square root of 1025689734 is about 32026.3912109997. The cubic root of 1025689734 is about 1008.4909444738.

The spelling of 1025689734 in words is "one billion, twenty-five million, six hundred eighty-nine thousand, seven hundred thirty-four".