2678522 has 16 divisors (see below), whose sum is σ = 5009472. Its totient is φ = 1043520.

The previous prime is 2678519. The next prime is 2678539. The reversal of 2678522 is 2258762.

Added to its reverse (2258762) it gives a square (4937284 = 2222²).

It is a d-powerful number, because it can be written as 2¹⁵ + 6⁷ + 7⁴ + 8⁴ + 5² + 2¹⁸ + 2²¹ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8543 + ... + 8850.

It is an arithmetic number, because the mean of its divisors is an integer number (313092).

2^2678522 is an apocalyptic number.

2678522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2678522 is a deficient number, since it is larger than the sum of its proper divisors (2330950).

2678522 is a wasteful number, since it uses less digits than its factorization.

2678522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17413.

The product of its digits is 13440, while the sum is 32.

The square root of 2678522 is about 1636.6190760223. The cubic root of 2678522 is about 138.8774518108.

Adding to 2678522 its product of digits (13440), we get a palindrome (2691962).

Adding to 2678522 its reverse (2258762), we get a square (4937284 = 2222²).

The spelling of 2678522 in words is "two million, six hundred seventy-eight thousand, five hundred twenty-two".