4400423451 has 6 divisors (see below), whose sum is σ = 6356167220. Its totient is φ = 2933615628.

The previous prime is 4400423393. The next prime is 4400423453. The reversal of 4400423451 is 1543240044.

It is a happy number.

It is not a de Polignac number, because 4400423451 - 2²¹ = 4398326299 is a prime.

It is a super-2 number, since 2×4400423451² = 38727453096221498802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4400423453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244467961 + ... + 244467978.

Almost surely, 2^4400423451 is an apocalyptic number.

4400423451 is a deficient number, since it is larger than the sum of its proper divisors (1955743769).

4400423451 is a wasteful number, since it uses less digits than its factorization.

4400423451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488935945 (or 488935942 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 4400423451 is about 66335.6876123252. The cubic root of 4400423451 is about 1638.6951065471.

Adding to 4400423451 its reverse (1543240044), we get a palindrome (5943663495).

The spelling of 4400423451 in words is "four billion, four hundred million, four hundred twenty-three thousand, four hundred fifty-one".