1025423320 has 16 divisors (see below), whose sum is σ = 2307202560. Its totient is φ = 410169312.

The previous prime is 1025423317. The next prime is 1025423339. The reversal of 1025423320 is 233245201.

It is a junction number, because it is equal to n+sod(n) for n = 1025423291 and 1025423300.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 12817752 + ... + 12817831.

It is an arithmetic number, because the mean of its divisors is an integer number (144200160).

Almost surely, 2^1025423320 is an apocalyptic number.

1025423320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025423320 is an abundant number, since it is smaller than the sum of its proper divisors (1281779240).

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

1025423320 is a wasteful number, since it uses less digits than its factorization.

1025423320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25635594 (or 25635590 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1025423320 is about 32022.2316524005. The cubic root of 1025423320 is about 1008.4036213250.

Adding to 1025423320 its reverse (233245201), we get a palindrome (1258668521).

The spelling of 1025423320 in words is "one billion, twenty-five million, four hundred twenty-three thousand, three hundred twenty".