2149281416 has 16 divisors (see below), whose sum is σ = 4053199500. Its totient is φ = 1068428224.

The previous prime is 2149281413. The next prime is 2149281439. The reversal of 2149281416 is 6141829412.

It can be written as a sum of positive squares in 2 ways, for example, as 1851580900 + 297700516 = 43030^2 + 17254^2 .

It is a super-3 number, since 3×2149281416³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2149281416.

It is not an unprimeable number, because it can be changed into a prime (2149281413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775091 + ... + 777858.

Almost surely, 2^2149281416 is an apocalyptic number.

It is an amenable number.

2149281416 is a deficient number, since it is larger than the sum of its proper divisors (1903918084).

2149281416 is a wasteful number, since it uses less digits than its factorization.

2149281416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553128 (or 1553124 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 2149281416 is about 46360.3431393686. The cubic root of 2149281416 is about 1290.5190740011.

The spelling of 2149281416 in words is "two billion, one hundred forty-nine million, two hundred eighty-one thousand, four hundred sixteen".