2231648 has 12 divisors (see below), whose sum is σ = 4393620. Its totient is φ = 1115808.

The previous prime is 2231627. The next prime is 2231653. The reversal of 2231648 is 8461322.

It is a super-3 number, since 3×2231648³ = 33342513574420709376, which contains 333 as substring.

It is a congruent number.

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, 34838 + ... + 34901.

It is an arithmetic number, because the mean of its divisors is an integer number (366135).

2^2231648 is an apocalyptic number.

It is an amenable number.

2231648 is a deficient number, since it is larger than the sum of its proper divisors (2161972).

2231648 is an equidigital number, since it uses as much as digits as its factorization.

2231648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69749 (or 69741 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 2231648 is about 1493.8701416120. The cubic root of 2231648 is about 130.6798311509.

The spelling of 2231648 in words is "two million, two hundred thirty-one thousand, six hundred forty-eight".