4144622649 has 8 divisors (see below), whose sum is σ = 5576862720. Its totient is φ = 2737732176.

The previous prime is 4144622623. The next prime is 4144622683. The reversal of 4144622649 is 9462264414.

It is a happy number.

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

It is not a de Polignac number, because 4144622649 - 2⁸ = 4144622393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4144622649.

It is not an unprimeable number, because it can be changed into a prime (4144622689) 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, 6337017 + ... + 6337670.

It is an arithmetic number, because the mean of its divisors is an integer number (697107840).

Almost surely, 2^4144622649 is an apocalyptic number.

It is an amenable number.

4144622649 is a deficient number, since it is larger than the sum of its proper divisors (1432240071).

4144622649 is a wasteful number, since it uses less digits than its factorization.

4144622649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12674799.

The product of its digits is 331776, while the sum is 42.

The square root of 4144622649 is about 64378.7437668676. The cubic root of 4144622649 is about 1606.3061864422.

The spelling of 4144622649 in words is "four billion, one hundred forty-four million, six hundred twenty-two thousand, six hundred forty-nine".