388425489 has 16 divisors (see below), whose sum is σ = 521845632. Its totient is φ = 256986368.

The previous prime is 388425487. The next prime is 388425511. The reversal of 388425489 is 984524883.

It is a cyclic number.

It is not a de Polignac number, because 388425489 - 2¹ = 388425487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (388425487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249337 + ... + 250889.

It is an arithmetic number, because the mean of its divisors is an integer number (32615352).

Almost surely, 2^388425489 is an apocalyptic number.

It is an amenable number.

388425489 is a deficient number, since it is larger than the sum of its proper divisors (133420143).

388425489 is a wasteful number, since it uses less digits than its factorization.

388425489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136.

The product of its digits is 2211840, while the sum is 51.

The square root of 388425489 is about 19708.5131098213. The cubic root of 388425489 is about 729.6298173163.

The spelling of 388425489 in words is "three hundred eighty-eight million, four hundred twenty-five thousand, four hundred eighty-nine".