2782018416 has 80 divisors (see below), whose sum is σ = 7276025376. Its totient is φ = 915898368.

The previous prime is 2782018411. The next prime is 2782018451. The reversal of 2782018416 is 6148102872.

It is a happy number.

2782018416 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2782018411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1913946 + ... + 1915398.

Almost surely, 2^2782018416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2782018416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3638012688).

2782018416 is an abundant number, since it is smaller than the sum of its proper divisors (4494006960).

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

2782018416 is a wasteful number, since it uses less digits than its factorization.

2782018416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930 (or 1924 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 2782018416 is about 52744.8425535616. The cubic root of 2782018416 is about 1406.4360836853.

The spelling of 2782018416 in words is "two billion, seven hundred eighty-two million, eighteen thousand, four hundred sixteen".