388809441 has 12 divisors (see below), whose sum is σ = 565902480. Its totient is φ = 257226840.

The previous prime is 388809439. The next prime is 388809451. The reversal of 388809441 is 144908883.

It is not a de Polignac number, because 388809441 - 2¹ = 388809439 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (388809451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163711 + ... + 166068.

It is an arithmetic number, because the mean of its divisors is an integer number (47158540).

Almost surely, 2^388809441 is an apocalyptic number.

It is an amenable number.

388809441 is a deficient number, since it is larger than the sum of its proper divisors (177093039).

388809441 is a wasteful number, since it uses less digits than its factorization.

388809441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329916 (or 329913 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 388809441 is about 19718.2514691339. The cubic root of 388809441 is about 729.8701470413.

The spelling of 388809441 in words is "three hundred eighty-eight million, eight hundred nine thousand, four hundred forty-one".