4244889857 has 16 divisors (see below), whose sum is σ = 4639488000. Its totient is φ = 3860236224.

The previous prime is 4244889853. The next prime is 4244889863. The reversal of 4244889857 is 7589884424.

It is not a de Polignac number, because 4244889857 - 2² = 4244889853 is a prime.

It is a super-2 number, since 2×4244889857² = 36038179796122960898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4244889796 and 4244889805.

It is not an unprimeable number, because it can be changed into a prime (4244889853) 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, 487619 + ... + 496247.

It is an arithmetic number, because the mean of its divisors is an integer number (289968000).

Almost surely, 2^4244889857 is an apocalyptic number.

It is an amenable number.

4244889857 is a deficient number, since it is larger than the sum of its proper divisors (394598143).

4244889857 is a wasteful number, since it uses less digits than its factorization.

4244889857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9200.

The product of its digits is 20643840, while the sum is 59.

The square root of 4244889857 is about 65152.8192559616. The cubic root of 4244889857 is about 1619.1564293004.

The spelling of 4244889857 in words is "four billion, two hundred forty-four million, eight hundred eighty-nine thousand, eight hundred fifty-seven".