388849101 has 4 divisors (see below), whose sum is σ = 518465472. Its totient is φ = 259232732.

The previous prime is 388849067. The next prime is 388849103. The reversal of 388849101 is 101948883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101948883 = 3 ⋅33982961.

It is a cyclic number.

It is not a de Polignac number, because 388849101 - 2¹⁰ = 388848077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388849103) 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, 64808181 + ... + 64808186.

It is an arithmetic number, because the mean of its divisors is an integer number (129616368).

Almost surely, 2^388849101 is an apocalyptic number.

It is an amenable number.

388849101 is a deficient number, since it is larger than the sum of its proper divisors (129616371).

388849101 is a wasteful number, since it uses less digits than its factorization.

388849101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129616370.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 388849101 is about 19719.2571107534. The cubic root of 388849101 is about 729.8949626817.

The spelling of 388849101 in words is "three hundred eighty-eight million, eight hundred forty-nine thousand, one hundred one".