4420454649 has 16 divisors (see below), whose sum is σ = 6348515712. Its totient is φ = 2719767168.

The previous prime is 4420454611. The next prime is 4420454657. The reversal of 4420454649 is 9464540244.

It is a happy number.

It is not a de Polignac number, because 4420454649 - 2¹² = 4420450553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4420454649.

It is not an unprimeable number, because it can be changed into a prime (4420454449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377724 + ... + 389250.

It is an arithmetic number, because the mean of its divisors is an integer number (396782232).

Almost surely, 2^4420454649 is an apocalyptic number.

It is an amenable number.

4420454649 is a deficient number, since it is larger than the sum of its proper divisors (1928061063).

4420454649 is a wasteful number, since it uses less digits than its factorization.

4420454649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21376.

The product of its (nonzero) digits is 552960, while the sum is 42.

The square root of 4420454649 is about 66486.4997499492. The cubic root of 4420454649 is about 1641.1778482203.

The spelling of 4420454649 in words is "four billion, four hundred twenty million, four hundred fifty-four thousand, six hundred forty-nine".