2631236 has 6 divisors (see below), whose sum is σ = 4604670. Its totient is φ = 1315616.

The previous prime is 2631221. The next prime is 2631241. The reversal of 2631236 is 6321362.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 1308736 = 1150^2 + 1144^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328901 + ... + 328908.

It is an arithmetic number, because the mean of its divisors is an integer number (767445).

2^2631236 is an apocalyptic number.

It is an amenable number.

2631236 is a deficient number, since it is larger than the sum of its proper divisors (1973434).

2631236 is a wasteful number, since it uses less digits than its factorization.

2631236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657813 (or 657811 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The square root of 2631236 is about 1622.1085043856. The cubic root of 2631236 is about 138.0553583125.

Adding to 2631236 its reverse (6321362), we get a palindrome (8952598).

The spelling of 2631236 in words is "two million, six hundred thirty-one thousand, two hundred thirty-six".