2146505444 has 6 divisors (see below), whose sum is σ = 3756384534. Its totient is φ = 1073252720.

The previous prime is 2146505443. The next prime is 2146505447. The reversal of 2146505444 is 4445056412.

It can be written as a sum of positive squares in only one way, i.e., 1178548900 + 967956544 = 34330^2 + 31112^2 .

It is a super-2 number, since 2×2146505444² = 9214971242243274272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2146505443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268313177 + ... + 268313184.

It is an arithmetic number, because the mean of its divisors is an integer number (626064089).

Almost surely, 2^2146505444 is an apocalyptic number.

It is an amenable number.

2146505444 is a deficient number, since it is larger than the sum of its proper divisors (1609879090).

2146505444 is a wasteful number, since it uses less digits than its factorization.

2146505444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536626365 (or 536626363 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The square root of 2146505444 is about 46330.3943864069. The cubic root of 2146505444 is about 1289.9632311295.

The spelling of 2146505444 in words is "two billion, one hundred forty-six million, five hundred five thousand, four hundred forty-four".