388733401 has 8 divisors (see below), whose sum is σ = 447249600. Its totient is φ = 330962928.

The previous prime is 388733363. The next prime is 388733437. The reversal of 388733401 is 104337883.

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 388733401 - 2⁹ = 388732889 is a prime.

It is a super-2 number, since 2×388733401² = 302227314106053602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (388733701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185311 + ... + 187396.

It is an arithmetic number, because the mean of its divisors is an integer number (55906200).

Almost surely, 2^388733401 is an apocalyptic number.

It is an amenable number.

388733401 is a deficient number, since it is larger than the sum of its proper divisors (58516199).

388733401 is a wasteful number, since it uses less digits than its factorization.

388733401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372863.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 388733401 is about 19716.3232119987. The cubic root of 388733401 is about 729.8225633678.

The spelling of 388733401 in words is "three hundred eighty-eight million, seven hundred thirty-three thousand, four hundred one".