2231630 has 16 divisors (see below), whose sum is σ = 4115664. Its totient is φ = 870720.

The previous prime is 2231627. The next prime is 2231653. The reversal of 2231630 is 361322.

It is a super-3 number, since 3×2231630³ = 33341706779975241000, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231599 and 2231608.

It is a congruent number.

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, 2312 + ... + 3131.

It is an arithmetic number, because the mean of its divisors is an integer number (257229).

2^2231630 is an apocalyptic number.

2231630 is a deficient number, since it is larger than the sum of its proper divisors (1884034).

2231630 is a wasteful number, since it uses less digits than its factorization.

2231630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2231630 is about 1493.8641169799. The cubic root of 2231630 is about 130.6794798046.

Adding to 2231630 its reverse (361322), we get a palindrome (2592952).

The spelling of 2231630 in words is "two million, two hundred thirty-one thousand, six hundred thirty".