4420631 has 4 divisors (see below), whose sum is σ = 4563264. Its totient is φ = 4278000.

The previous prime is 4420627. The next prime is 4420639. The reversal of 4420631 is 1360244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4420631 - 2² = 4420627 is a prime.

It is a super-2 number, since 2×4420631² = 39083956876322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71270 + ... + 71331.

It is an arithmetic number, because the mean of its divisors is an integer number (1140816).

Almost surely, 2^4420631 is an apocalyptic number.

4420631 is a deficient number, since it is larger than the sum of its proper divisors (142633).

4420631 is a wasteful number, since it uses less digits than its factorization.

4420631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142632.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4420631 is about 2102.5296668537. The cubic root of 4420631 is about 164.1199672484.

Adding to 4420631 its reverse (1360244), we get a palindrome (5780875).

The spelling of 4420631 in words is "four million, four hundred twenty thousand, six hundred thirty-one".