1020342425 has 12 divisors (see below), whose sum is σ = 1285967916. Its totient is φ = 802891200.

The previous prime is 1020342419. The next prime is 1020342439. The reversal of 1020342425 is 5242430201.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 241709209 + 778633216 = 15547^2 + 27904^2 .

It is not a de Polignac number, because 1020342425 - 2²² = 1016148121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020342425.

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, 333014 + ... + 336063.

It is an arithmetic number, because the mean of its divisors is an integer number (107163993).

Almost surely, 2^1020342425 is an apocalyptic number.

It is an amenable number.

1020342425 is a deficient number, since it is larger than the sum of its proper divisors (265625491).

1020342425 is an equidigital number, since it uses as much as digits as its factorization.

1020342425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669148 (or 669143 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1020342425 is about 31942.7992668144. The cubic root of 1020342425 is about 1006.7353416569.

Adding to 1020342425 its reverse (5242430201), we get a palindrome (6262772626).

The spelling of 1020342425 in words is "one billion, twenty million, three hundred forty-two thousand, four hundred twenty-five".