4020543702 has 160 divisors (see below), whose sum is σ = 10726214400. Its totient is φ = 1101304512.

The previous prime is 4020543679. The next prime is 4020543719. The reversal of 4020543702 is 2073450204.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5886253 + ... + 5886935.

It is an arithmetic number, because the mean of its divisors is an integer number (67038840).

Almost surely, 2^4020543702 is an apocalyptic number.

4020543702 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 4020543702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5363107200).

4020543702 is an abundant number, since it is smaller than the sum of its proper divisors (6705670698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4020543702 is a wasteful number, since it uses less digits than its factorization.

4020543702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912 (or 903 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 4020543702 is about 63407.7574276208. The cubic root of 4020543702 is about 1590.1140039296.

Adding to 4020543702 its reverse (2073450204), we get a palindrome (6093993906).

The spelling of 4020543702 in words is "four billion, twenty million, five hundred forty-three thousand, seven hundred two".