2123444546 has 16 divisors (see below), whose sum is σ = 3195095328. Its totient is φ = 1058419200.

The previous prime is 2123444539. The next prime is 2123444549. The reversal of 2123444546 is 6454443212.

It is a super-2 number, since 2×2123444546² = 9018033479874292232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123444549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1644161 + ... + 1645451.

It is an arithmetic number, because the mean of its divisors is an integer number (199693458).

Almost surely, 2^2123444546 is an apocalyptic number.

2123444546 is a deficient number, since it is larger than the sum of its proper divisors (1071650782).

2123444546 is a wasteful number, since it uses less digits than its factorization.

2123444546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217.

The product of its digits is 92160, while the sum is 35.

The square root of 2123444546 is about 46080.8479305666. The cubic root of 2123444546 is about 1285.3270316833.

Adding to 2123444546 its reverse (6454443212), we get a palindrome (8577887758).

The spelling of 2123444546 in words is "two billion, one hundred twenty-three million, four hundred forty-four thousand, five hundred forty-six".