2016020440 has 32 divisors (see below), whose sum is σ = 5184053280. Its totient is φ = 691206912.

The previous prime is 2016020437. The next prime is 2016020459. The reversal of 2016020440 is 440206102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3599757 + ... + 3600316.

It is an arithmetic number, because the mean of its divisors is an integer number (162001665).

Almost surely, 2^2016020440 is an apocalyptic number.

2016020440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2016020440 is an abundant number, since it is smaller than the sum of its proper divisors (3168032840).

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

2016020440 is a wasteful number, since it uses less digits than its factorization.

2016020440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7200091 (or 7200087 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2016020440 is about 44900.1162582014. The cubic root of 2016020440 is about 1263.2761889081.

Adding to 2016020440 its reverse (440206102), we get a palindrome (2456226542).

The spelling of 2016020440 in words is "two billion, sixteen million, twenty thousand, four hundred forty".