440301421 has 16 divisors (see below), whose sum is σ = 537602560. Its totient is φ = 352194480.

The previous prime is 440301409. The next prime is 440301427. The reversal of 440301421 is 124103044.

It is a cyclic number.

It is not a de Polignac number, because 440301421 - 2⁷ = 440301293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440301427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15795 + ... + 33616.

It is an arithmetic number, because the mean of its divisors is an integer number (33600160).

Almost surely, 2^440301421 is an apocalyptic number.

It is an amenable number.

440301421 is a deficient number, since it is larger than the sum of its proper divisors (97301139).

440301421 is a wasteful number, since it uses less digits than its factorization.

440301421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49504.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 440301421 is about 20983.3605745124. The cubic root of 440301421 is about 760.7641327703.

Adding to 440301421 its reverse (124103044), we get a palindrome (564404465).

It can be divided in two parts, 44030 and 1421, that added together give a triangular number (45451 = T₃₀₁).

The spelling of 440301421 in words is "four hundred forty million, three hundred one thousand, four hundred twenty-one".