388838099 has 8 divisors (see below), whose sum is σ = 419492640. Its totient is φ = 358289856.

The previous prime is 388838083. The next prime is 388838101. The reversal of 388838099 is 990838883.

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

It is a cyclic number.

It is not a de Polignac number, because 388838099 - 2⁴ = 388838083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388838039) 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, 18887 + ... + 33680.

It is an arithmetic number, because the mean of its divisors is an integer number (52436580).

Almost surely, 2^388838099 is an apocalyptic number.

388838099 is a deficient number, since it is larger than the sum of its proper divisors (30654541).

388838099 is a wasteful number, since it uses less digits than its factorization.

388838099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53149.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The square root of 388838099 is about 19718.9781428957. The cubic root of 388838099 is about 729.8880787944. Note that the first 3 decimals are identical.

The spelling of 388838099 in words is "three hundred eighty-eight million, eight hundred thirty-eight thousand, ninety-nine".