2780102 has 16 divisors (see below), whose sum is σ = 4687200. Its totient is φ = 1227072.

The previous prime is 2780101. The next prime is 2780119. The reversal of 2780102 is 2010872.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1727 + ... + 2922.

It is an arithmetic number, because the mean of its divisors is an integer number (292950).

2^2780102 is an apocalyptic number.

2780102 is a deficient number, since it is larger than the sum of its proper divisors (1907098).

2780102 is a wasteful number, since it uses less digits than its factorization.

2780102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2780102 is about 1667.3637875401. The cubic root of 2780102 is about 140.6113064526.

Adding to 2780102 its reverse (2010872), we get a palindrome (4790974).

It can be divided in two parts, 2780 and 102, that added together give a palindrome (2882).

The spelling of 2780102 in words is "two million, seven hundred eighty thousand, one hundred two".