1025063634 has 24 divisors (see below), whose sum is σ = 2384842608. Its totient is φ = 292875240.

The previous prime is 1025063629. The next prime is 1025063647. The reversal of 1025063634 is 4363605201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1743012 + ... + 1743599.

It is an arithmetic number, because the mean of its divisors is an integer number (99368442).

Almost surely, 2^1025063634 is an apocalyptic number.

1025063634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1025063634 is an abundant number, since it is smaller than the sum of its proper divisors (1359778974).

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

1025063634 is a wasteful number, since it uses less digits than its factorization.

1025063634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486630 (or 3486623 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1025063634 is about 32016.6149678569. The cubic root of 1025063634 is about 1008.2857021934.

Adding to 1025063634 its reverse (4363605201), we get a palindrome (5388668835).

The spelling of 1025063634 in words is "one billion, twenty-five million, sixty-three thousand, six hundred thirty-four".