440421463 has 8 divisors (see below), whose sum is σ = 479588400. Its totient is φ = 402853248.

The previous prime is 440421461. The next prime is 440421469. The reversal of 440421463 is 364124044.

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

It is a cyclic number.

It is not a de Polignac number, because 440421463 - 2¹ = 440421461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440421461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399106 + ... + 400207.

It is an arithmetic number, because the mean of its divisors is an integer number (59948550).

Almost surely, 2^440421463 is an apocalyptic number.

440421463 is a deficient number, since it is larger than the sum of its proper divisors (39166937).

440421463 is a wasteful number, since it uses less digits than its factorization.

440421463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799361.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 440421463 is about 20986.2207888891. The cubic root of 440421463 is about 760.8332637077.

It can be divided in two parts, 44042 and 1463, that multiplied together give a palindrome (64433446).

The spelling of 440421463 in words is "four hundred forty million, four hundred twenty-one thousand, four hundred sixty-three".