2320625640 has 64 divisors (see below), whose sum is σ = 6966518400. Its totient is φ = 618420992.

The previous prime is 2320625603. The next prime is 2320625651. The reversal of 2320625640 is 465260232.

It is a super-2 number, since 2×2320625640² = 10770606722050819200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2320625598 and 2320625607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202381 + ... + 213539.

It is an arithmetic number, because the mean of its divisors is an integer number (108851850).

Almost surely, 2^2320625640 is an apocalyptic number.

2320625640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320625640 is an abundant number, since it is smaller than the sum of its proper divisors (4645892760).

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

2320625640 is a wasteful number, since it uses less digits than its factorization.

2320625640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12906 (or 12902 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 2320625640 is about 48172.8724491285. The cubic root of 2320625640 is about 1323.9401782618.

Adding to 2320625640 its reverse (465260232), we get a palindrome (2785885872).

The spelling of 2320625640 in words is "two billion, three hundred twenty million, six hundred twenty-five thousand, six hundred forty".