3438644057 has 8 divisors (see below), whose sum is σ = 3572492040. Its totient is φ = 3305814400.

The previous prime is 3438643991. The next prime is 3438644059. The reversal of 3438644057 is 7504468343.

It can be written as a sum of positive squares in 4 ways, for example, as 5973136 + 3432670921 = 2444^2 + 58589^2 .

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

It is not a de Polignac number, because 3438644057 - 2¹⁸ = 3438381913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3438643999 and 3438644017.

It is not an unprimeable number, because it can be changed into a prime (3438644059) 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, 247694 + ... + 261207.

It is an arithmetic number, because the mean of its divisors is an integer number (446561505).

Almost surely, 2^3438644057 is an apocalyptic number.

It is an amenable number.

3438644057 is a deficient number, since it is larger than the sum of its proper divisors (133847983).

3438644057 is a wasteful number, since it uses less digits than its factorization.

3438644057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509163.

The product of its (nonzero) digits is 967680, while the sum is 44.

The square root of 3438644057 is about 58639.9527370205. The cubic root of 3438644057 is about 1509.3700948547.

The spelling of 3438644057 in words is "three billion, four hundred thirty-eight million, six hundred forty-four thousand, fifty-seven".