1025638316 has 12 divisors (see below), whose sum is σ = 1889333880. Its totient is φ = 485828640.

The previous prime is 1025638309. The next prime is 1025638337. The reversal of 1025638316 is 6138365201.

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 3 ways as a sum of consecutive naturals, for example, 6747545 + ... + 6747696.

It is an arithmetic number, because the mean of its divisors is an integer number (157444490).

Almost surely, 2^1025638316 is an apocalyptic number.

It is an amenable number.

1025638316 is a deficient number, since it is larger than the sum of its proper divisors (863695564).

1025638316 is a wasteful number, since it uses less digits than its factorization.

1025638316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13495264 (or 13495262 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1025638316 is about 32025.5884567325. The cubic root of 1025638316 is about 1008.4740922516.

The spelling of 1025638316 in words is "one billion, twenty-five million, six hundred thirty-eight thousand, three hundred sixteen".