1441432421 has 32 divisors (see below), whose sum is σ = 1749216000. Its totient is φ = 1170987840.

The previous prime is 1441432411. The next prime is 1441432423. The reversal of 1441432421 is 1242341441.

It is not a de Polignac number, because 1441432421 - 2⁶ = 1441432357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441432423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7243280 + ... + 7243478.

It is an arithmetic number, because the mean of its divisors is an integer number (54663000).

Almost surely, 2^1441432421 is an apocalyptic number.

1441432421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1441432421 is a deficient number, since it is larger than the sum of its proper divisors (307783579).

1441432421 is an equidigital number, since it uses as much as digits as its factorization.

1441432421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 260 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 1441432421 is about 37966.2010346044. The cubic root of 1441432421 is about 1129.6175438409.

Adding to 1441432421 its reverse (1242341441), we get a palindrome (2683773862).

The spelling of 1441432421 in words is "one billion, four hundred forty-one million, four hundred thirty-two thousand, four hundred twenty-one".