3628438019 has 4 divisors (see below), whose sum is σ = 3631066800. Its totient is φ = 3625809240.

The previous prime is 3628437977. The next prime is 3628438057. The reversal of 3628438019 is 9108348263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9108348263 = 7 ⋅1301192609.

It is a cyclic number.

It is not a de Polignac number, because 3628438019 - 2¹² = 3628433923 is a prime.

It is a super-2 number, since 2×3628438019² = 26331124915449288722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3628738019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312319 + ... + 1315080.

It is an arithmetic number, because the mean of its divisors is an integer number (907766700).

Almost surely, 2^3628438019 is an apocalyptic number.

3628438019 is a deficient number, since it is larger than the sum of its proper divisors (2628781).

3628438019 is a wasteful number, since it uses less digits than its factorization.

3628438019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628780.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 3628438019 is about 60236.5173213060. The cubic root of 3628438019 is about 1536.6439000197.

The spelling of 3628438019 in words is "three billion, six hundred twenty-eight million, four hundred thirty-eight thousand, nineteen".