2039066640 has 120 divisors (see below), whose sum is σ = 7374658200. Its totient is φ = 501921792.

The previous prime is 2039066621. The next prime is 2039066641. The reversal of 2039066640 is 466609302.

It can be written as a sum of positive squares in 4 ways, for example, as 2304 + 2039064336 = 48^2 + 45156^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2039066595 and 2039066604.

It is not an unprimeable number, because it can be changed into a prime (2039066641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99565 + ... + 118284.

It is an arithmetic number, because the mean of its divisors is an integer number (61455485).

Almost surely, 2^2039066640 is an apocalyptic number.

2039066640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2039066640 is an abundant number, since it is smaller than the sum of its proper divisors (5335591560).

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

2039066640 is a wasteful number, since it uses less digits than its factorization.

2039066640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217881 (or 217872 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 2039066640 is about 45156.0255115527. The cubic root of 2039066640 is about 1268.0716887026.

The spelling of 2039066640 in words is "two billion, thirty-nine million, sixty-six thousand, six hundred forty".