1020025434 has 8 divisors (see below), whose sum is σ = 2040050880. Its totient is φ = 340008476.

The previous prime is 1020025427. The next prime is 1020025463. The reversal of 1020025434 is 4345200201.

It is a sphenic number, since it is the product of 3 distinct primes.

1020025434 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020025434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85002114 + ... + 85002125.

It is an arithmetic number, because the mean of its divisors is an integer number (255006360).

Almost surely, 2^1020025434 is an apocalyptic number.

1020025434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1020025434 is a wasteful number, since it uses less digits than its factorization.

1020025434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170004244.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1020025434 is about 31937.8370275759. The cubic root of 1020025434 is about 1006.6310763017.

Adding to 1020025434 its reverse (4345200201), we get a palindrome (5365225635).

The spelling of 1020025434 in words is "one billion, twenty million, twenty-five thousand, four hundred thirty-four".