2781022 has 8 divisors (see below), whose sum is σ = 4352976. Its totient is φ = 1330032.

The previous prime is 2781019. The next prime is 2781029. The reversal of 2781022 is 2201872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2780984 and 2781002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2781029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30183 + ... + 30274.

It is an arithmetic number, because the mean of its divisors is an integer number (544122).

2^2781022 is an apocalyptic number.

2781022 is a deficient number, since it is larger than the sum of its proper divisors (1571954).

2781022 is a wasteful number, since it uses less digits than its factorization.

2781022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60482.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2781022 is about 1667.6396493248. The cubic root of 2781022 is about 140.6268152523.

Adding to 2781022 its reverse (2201872), we get a palindrome (4982894).

The spelling of 2781022 in words is "two million, seven hundred eighty-one thousand, twenty-two".