2780152 has 8 divisors (see below), whose sum is σ = 5212800. Its totient is φ = 1390072.

The previous prime is 2780149. The next prime is 2780153. The reversal of 2780152 is 2510872.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780153) 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 as a sum of consecutive naturals, namely, 173752 + ... + 173767.

It is an arithmetic number, because the mean of its divisors is an integer number (651600).

2^2780152 is an apocalyptic number.

It is an amenable number.

2780152 is a deficient number, since it is larger than the sum of its proper divisors (2432648).

2780152 is a wasteful number, since it uses less digits than its factorization.

2780152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347525 (or 347521 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2780152 is about 1667.3787812012. The cubic root of 2780152 is about 140.6121494101.

The spelling of 2780152 in words is "two million, seven hundred eighty thousand, one hundred fifty-two".