2780264 has 8 divisors (see below), whose sum is σ = 5213010. Its totient is φ = 1390128.

The previous prime is 2780243. The next prime is 2780273. The reversal of 2780264 is 4620872.

It can be written as a sum of positive squares in only one way, i.e., 2696164 + 84100 = 1642^2 + 290^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173759 + ... + 173774.

2^2780264 is an apocalyptic number.

It is an amenable number.

2780264 is a deficient number, since it is larger than the sum of its proper divisors (2432746).

2780264 is a wasteful number, since it uses less digits than its factorization.

2780264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347539 (or 347535 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2780264 is about 1667.4123665129. The cubic root of 2780264 is about 140.6140375981.

The spelling of 2780264 in words is "two million, seven hundred eighty thousand, two hundred sixty-four".