1025012268 has 36 divisors (see below), whose sum is σ = 2961147280. Its totient is φ = 292860576.

The previous prime is 1025012213. The next prime is 1025012269. The reversal of 1025012268 is 8622105201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1025012269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2033503 + ... + 2034006.

Almost surely, 2^1025012268 is an apocalyptic number.

1025012268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1025012268 is an abundant number, since it is smaller than the sum of its proper divisors (1936135012).

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

1025012268 is a wasteful number, since it uses less digits than its factorization.

1025012268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067526 (or 4067521 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1025012268 is about 32015.8127805620. The cubic root of 1025012268 is about 1008.2688601598.

Adding to 1025012268 its reverse (8622105201), we get a palindrome (9647117469).

The spelling of 1025012268 in words is "one billion, twenty-five million, twelve thousand, two hundred sixty-eight".