1025204634 has 32 divisors (see below), whose sum is σ = 2290841280. Its totient is φ = 339843600.

The previous prime is 1025204597. The next prime is 1025204659. The reversal of 1025204634 is 4364025201.

1025204634 is a `hidden beast` number, since 1 + 0 + 2 + 5 + 20 + 4 + 634 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1025204598 and 1025204607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42672 + ... + 62219.

It is an arithmetic number, because the mean of its divisors is an integer number (71588790).

Almost surely, 2^1025204634 is an apocalyptic number.

1025204634 is an abundant number, since it is smaller than the sum of its proper divisors (1265636646).

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

1025204634 is a wasteful number, since it uses less digits than its factorization.

1025204634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105083 (or 105077 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1025204634 is about 32018.8168738322. The cubic root of 1025204634 is about 1008.3319307921.

Adding to 1025204634 its reverse (4364025201), we get a palindrome (5389229835).

The spelling of 1025204634 in words is "one billion, twenty-five million, two hundred four thousand, six hundred thirty-four".