2063722640 has 40 divisors (see below), whose sum is σ = 5483607360. Its totient is φ = 707561856.

The previous prime is 2063722637. The next prime is 2063722649. The reversal of 2063722640 is 462273602.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2063722640² = 8517902269697139200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2063722597 and 2063722606.

It is not an unprimeable number, because it can be changed into a prime (2063722649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1842050 + ... + 1843169.

It is an arithmetic number, because the mean of its divisors is an integer number (137090184).

Almost surely, 2^2063722640 is an apocalyptic number.

2063722640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2063722640 is an abundant number, since it is smaller than the sum of its proper divisors (3419884720).

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

2063722640 is a wasteful number, since it uses less digits than its factorization.

2063722640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685239 (or 3685233 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 2063722640 is about 45428.2141405537. The cubic root of 2063722640 is about 1273.1623178555.

The spelling of 2063722640 in words is "two billion, sixty-three million, seven hundred twenty-two thousand, six hundred forty".