4221146436 has 48 divisors (see below), whose sum is σ = 10618555584. Its totient is φ = 1297397376.

The previous prime is 4221146387. The next prime is 4221146453. The reversal of 4221146436 is 6346411224.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 4221146397 and 4221146406.

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, 133446 + ... + 162018.

It is an arithmetic number, because the mean of its divisors is an integer number (221219908).

Almost surely, 2^4221146436 is an apocalyptic number.

It is an amenable number.

4221146436 is an abundant number, since it is smaller than the sum of its proper divisors (6397409148).

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

4221146436 is a wasteful number, since it uses less digits than its factorization.

4221146436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29540 (or 29538 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 4221146436 is about 64970.3504377189. The cubic root of 4221146436 is about 1616.1319130831.

The spelling of 4221146436 in words is "four billion, two hundred twenty-one million, one hundred forty-six thousand, four hundred thirty-six".