2780148 has 48 divisors (see below), whose sum is σ = 7741440. Its totient is φ = 759264.

The previous prime is 2780131. The next prime is 2780149. The reversal of 2780148 is 8410872.

2780148 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213 + ... + 2651.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

2^2780148 is an apocalyptic number.

2780148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2780148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3870720).

2780148 is an abundant number, since it is smaller than the sum of its proper divisors (4961292).

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

2780148 is a wasteful number, since it uses less digits than its factorization.

2780148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476 (or 1474 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 2780148 is about 1667.3775817133. The cubic root of 2780148 is about 140.6120819739.

The spelling of 2780148 in words is "two million, seven hundred eighty thousand, one hundred forty-eight".