4020281343 has 90 divisors (see below), whose sum is σ = 6846438456. Its totient is φ = 2345511168.

The previous prime is 4020281341. The next prime is 4020281359. The reversal of 4020281343 is 3431820204.

4020281343 is a `hidden beast` number, since 40 + 2 + 0 + 281 + 343 = 666.

It is not a de Polignac number, because 4020281343 - 2¹ = 4020281341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020281341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 35577655 + ... + 35577767.

Almost surely, 2^4020281343 is an apocalyptic number.

4020281343 is a deficient number, since it is larger than the sum of its proper divisors (2826157113).

4020281343 is a wasteful number, since it uses less digits than its factorization.

4020281343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 4020281343 is about 63405.6885697175. The cubic root of 4020281343 is about 1590.0794157557.

The spelling of 4020281343 in words is "four billion, twenty million, two hundred eighty-one thousand, three hundred forty-three".