4442221431 has 24 divisors (see below), whose sum is σ = 6819119424. Its totient is φ = 2776965120.

The previous prime is 4442221423. The next prime is 4442221457. The reversal of 4442221431 is 1341222444.

4442221431 is a `hidden beast` number, since 4 + 4 + 4 + 2 + 221 + 431 = 666.

It is not a de Polignac number, because 4442221431 - 2³ = 4442221423 is a prime.

It is a super-2 number, since 2×4442221431² = 39466662484071375522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4442221395 and 4442221404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442221031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12106 + ... + 95031.

It is an arithmetic number, because the mean of its divisors is an integer number (284129976).

Almost surely, 2^4442221431 is an apocalyptic number.

4442221431 is a deficient number, since it is larger than the sum of its proper divisors (2376897993).

4442221431 is a wasteful number, since it uses less digits than its factorization.

4442221431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107431 (or 107428 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 4442221431 is about 66649.9919804946. The cubic root of 4442221431 is about 1643.8672160412.

Adding to 4442221431 its reverse (1341222444), we get a palindrome (5783443875).

The spelling of 4442221431 in words is "four billion, four hundred forty-two million, two hundred twenty-one thousand, four hundred thirty-one".