388114981 has 8 divisors (see below), whose sum is σ = 411675264. Its totient is φ = 364635840.

The previous prime is 388114967. The next prime is 388114999. The reversal of 388114981 is 189411883.

It is a happy number.

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 388114981 - 2⁹ = 388114469 is a prime.

It is a super-2 number, since 2×388114981² = 301266476953260722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388114901) 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, 10285 + ... + 29698.

It is an arithmetic number, because the mean of its divisors is an integer number (51459408).

Almost surely, 2^388114981 is an apocalyptic number.

It is an amenable number.

388114981 is a deficient number, since it is larger than the sum of its proper divisors (23560283).

388114981 is a wasteful number, since it uses less digits than its factorization.

388114981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40571.

The product of its digits is 55296, while the sum is 43.

The square root of 388114981 is about 19700.6340253303. The cubic root of 388114981 is about 729.4353430449.

The spelling of 388114981 in words is "three hundred eighty-eight million, one hundred fourteen thousand, nine hundred eighty-one".