2780743452 has 24 divisors (see below), whose sum is σ = 6495236496. Its totient is φ = 925938048.

The previous prime is 2780743429. The next prime is 2780743463. The reversal of 2780743452 is 2543470872.

It is a happy number.

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, 110143 + ... + 133014.

It is an arithmetic number, because the mean of its divisors is an integer number (270634854).

Almost surely, 2^2780743452 is an apocalyptic number.

It is an amenable number.

2780743452 is an abundant number, since it is smaller than the sum of its proper divisors (3714493044).

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

2780743452 is a wasteful number, since it uses less digits than its factorization.

2780743452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244117 (or 244115 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 42.

The square root of 2780743452 is about 52732.7550200063. The cubic root of 2780743452 is about 1406.2212002082.

The spelling of 2780743452 in words is "two billion, seven hundred eighty million, seven hundred forty-three thousand, four hundred fifty-two".