4021725436 has 24 divisors (see below), whose sum is σ = 7177330944. Its totient is φ = 1971128640.

The previous prime is 4021725431. The next prime is 4021725437. The reversal of 4021725436 is 6345271204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021725431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242341 + ... + 258403.

It is an arithmetic number, because the mean of its divisors is an integer number (299055456).

Almost surely, 2^4021725436 is an apocalyptic number.

It is an amenable number.

4021725436 is a deficient number, since it is larger than the sum of its proper divisors (3155605508).

4021725436 is a wasteful number, since it uses less digits than its factorization.

4021725436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17301 (or 17299 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 4021725436 is about 63417.0752715702. The cubic root of 4021725436 is about 1590.2697795202.

The spelling of 4021725436 in words is "four billion, twenty-one million, seven hundred twenty-five thousand, four hundred thirty-six".