2780386224 has 120 divisors (see below), whose sum is σ = 9115005888. Its totient is φ = 722171520.

The previous prime is 2780386171. The next prime is 2780386229. The reversal of 2780386224 is 4226830872.

2780386224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780386229) 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, 27862 + ... + 79605.

Almost surely, 2^2780386224 is an apocalyptic number.

2780386224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2780386224 is an abundant number, since it is smaller than the sum of its proper divisors (6334619664).

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

2780386224 is a wasteful number, since it uses less digits than its factorization.

2780386224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107503 (or 107490 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 2780386224 is about 52729.3677564979. The cubic root of 2780386224 is about 1406.1609809289.

The spelling of 2780386224 in words is "two billion, seven hundred eighty million, three hundred eighty-six thousand, two hundred twenty-four".