1021040425 has 24 divisors (see below), whose sum is σ = 1299916800. Its totient is φ = 795100800.

The previous prime is 1021040399. The next prime is 1021040431. The reversal of 1021040425 is 5240401201.

It is not a de Polignac number, because 1021040425 - 2⁵ = 1021040393 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 613144 + ... + 614806.

It is an arithmetic number, because the mean of its divisors is an integer number (54163200).

Almost surely, 2^1021040425 is an apocalyptic number.

It is an amenable number.

1021040425 is a deficient number, since it is larger than the sum of its proper divisors (278876375).

1021040425 is a wasteful number, since it uses less digits than its factorization.

1021040425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313 (or 2308 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1021040425 is about 31953.7231789975. The cubic root of 1021040425 is about 1006.9648532001.

Adding to 1021040425 its reverse (5240401201), we get a palindrome (6261441626).

The spelling of 1021040425 in words is "one billion, twenty-one million, forty thousand, four hundred twenty-five".