4020384434 has 32 divisors (see below), whose sum is σ = 7206019200. Its totient is φ = 1660637440.

The previous prime is 4020384427. The next prime is 4020384503. The reversal of 4020384434 is 4344830204.

It is a self number, because there is not a number n which added to its sum of digits gives 4020384434.

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 15 ways as a sum of consecutive naturals, for example, 174494 + ... + 196185.

It is an arithmetic number, because the mean of its divisors is an integer number (225188100).

Almost surely, 2^4020384434 is an apocalyptic number.

4020384434 is a deficient number, since it is larger than the sum of its proper divisors (3185634766).

4020384434 is a wasteful number, since it uses less digits than its factorization.

4020384434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370738.

The product of its (nonzero) digits is 36864, while the sum is 32.

The square root of 4020384434 is about 63406.5015120689. The cubic root of 4020384434 is about 1590.0930069667.

The spelling of 4020384434 in words is "four billion, twenty million, three hundred eighty-four thousand, four hundred thirty-four".