4021431441 has 8 divisors (see below), whose sum is σ = 5396061504. Its totient is φ = 2663877840.

The previous prime is 4021431433. The next prime is 4021431467. The reversal of 4021431441 is 1441341204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4021431441 - 2³ = 4021431433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4021431541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4268565 + ... + 4269506.

It is an arithmetic number, because the mean of its divisors is an integer number (674507688).

Almost surely, 2^4021431441 is an apocalyptic number.

It is an amenable number.

4021431441 is a deficient number, since it is larger than the sum of its proper divisors (1374630063).

4021431441 is a wasteful number, since it uses less digits than its factorization.

4021431441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8538231.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 4021431441 is about 63414.7572809358. The cubic root of 4021431441 is about 1590.2310280967.

Adding to 4021431441 its reverse (1441341204), we get a palindrome (5462772645).

The spelling of 4021431441 in words is "four billion, twenty-one million, four hundred thirty-one thousand, four hundred forty-one".