4020734556 has 36 divisors (see below), whose sum is σ = 10171418712. Its totient is φ = 1339203744.

The previous prime is 4020734527. The next prime is 4020734561. The reversal of 4020734556 is 6554370204.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 4020734556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4326 + ... + 89778.

Almost surely, 2^4020734556 is an apocalyptic number.

It is an amenable number.

4020734556 is an abundant number, since it is smaller than the sum of its proper divisors (6150684156).

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

4020734556 is a wasteful number, since it uses less digits than its factorization.

4020734556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86770 (or 86765 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 4020734556 is about 63409.2623833459. The cubic root of 4020734556 is about 1590.1391642760.

The spelling of 4020734556 in words is "four billion, twenty million, seven hundred thirty-four thousand, five hundred fifty-six".